TEXT: The Events Of One 2234 Water Street
  A Call Of Cthulhu Adventure
  This scenario is more of a very detailed adventure sketch, meaning, there are numerous places to add
  events, change particulars, pick monsters, and customize it to your liking. I hope some or all of it finds a
  home in your game. This scenario is set in the 1920’s in a rural/suburban environment. It can be easily
  changed to practically any other decade with a minimum of effort.
  Keeper Info: 
  Living at the address of 2234 Water St. (city isn’t too important, though Arkham sounds nice.) lives a
  very ordinary-seeming family, the Cooks, the mother is Laura, the Father David, and the son is James.
  There is also an uncle, Roger, a prosaic older man who seems to dislike people. The house could be in the
  suburbs for a more modern feel of desolation, but wherever the house is, it should sit comfortably in a
  residential area, with only other houses around; and as people are there are kind neighbors but none that
  would go out of their way to help one another. Then, it is sufficient to say that calls for help are ignored,
  and screams only sometimes are heeded. Within this backdrop of community apathy, a horror took place. 
  The only son James is now 24 and the family seems to be trying to get him out of the house, but
  unfortunately for them his calling seems to be as a painter. And further to confound the family his works
  (both disturbing and lovely at the same time) cannot be drawn on purpose by James, he must have the
  feeling strike him, and then the painting is made at an astonishing pace. The stark oil paintings seem to
  show all sorts of twisting corridors deep underground, or muddy soil in the foreground with buildings
  harboring strange non-Euclidian geometry in the distant ocean haze. These paintings are strange, and
  some are outright frightening (Keepers can choose to have 1 sanity lost after viewing 1d6 of these
  paintings [and a failed san check], and viewing the whole basement gallery will cost 1/1d6 san and add
  1d6 Cthulhu Mythos). James will state that he doesn’t know what he paints only that it comes to him in
  dreams, and that he usually wakes up with his heart racing and his clothes soaked in sweat. Recently
  David had become increasingly angered at the paintings, he would have late-night shouting matches with
  David saying that he thought that they were creepy and that he should get a real job. The fights intensified
  until David stalked off to the basement and set to destroying the paintings one by one, snapping them over
  his knee. When he arrived at “Darkened R’lyeh” he stopped suddenly as if manipulated by a puppeteer,
  his head tilted back till he was staring straight up, he muttered some strange language, and collapsed
  completely dead. 
  James had no idea of what to do, so he told Roger the whole thing, who then said that he would take care
  of it, for no one else would believe that James hadn’t killed his father (the tensions between the two were
  well known). Roger fetched a cracking tome from his private study and worked some manner of spell on
  the body of David Cook, Roger and James then buried the body in the backyard taking careful precautions
  to see that it wouldn’t be found. He then sent James away and set to work on his own. Roger had worked
  a spell on the body of David to entrap a part of his psyche in a small talisman (since he was in the
  basement and didn’t have much time he chose a small nail), the talisman will convert another person into
  David, by all tests the body of the victim will be an exact copy of David’s body at the time he died. The
  only problem is that he needs living bodies to have the cycle work so Roger finds the first body, he
  informs this David that he is dead and that Roger can snuff him out with a word, and that to continue
  living he must find people to stab the nail into (the nail can be put anywhere, but usually a place where it
  won’t be found is best) the nail is painful, but only slightly, and the pain comes from the fact that the nail
  is slowly consuming the life force of the body that it is in (and the life force is being sent to an appropriate
  elder god or baddie) and will totally consume it within 3d6+10 days, after this time if a new body hasn’t
  been found the current husk will assume its normal non-David form and lie there, a slightly emaciated
  corpse. 
  Even worse, nightly dogs try to dig up the actual corpse of David, and every morning James goes out and
  
  covers up the hole. The dogs usually don’t go deep enough. The ground seems to be giving off a putrid
  fish smell… 
  With all of this transpiring it has become very busy for the local police department lately… 
  Player Intro: 
  The investigators can be contacted in numerous ways: -A police friend of one of the investigators can
  contact them with a very odd story; he knows they have a record of finding answers where none seem to
  be… -They may be attacked by a hooded figure that tries (successfully?) to jab them with a small nail.
  -There are disappearances in one of the investigator’s home neighborhoods; his family still lives there. -A
  friend or family member writes to say that another member of the family has been found, lying dead
  outside a home on the other side of town dressed strangely, with a strange haircut, and a gun. The police
  say that there is no known cause of death but severe dehydration. 
  Player Info: 
  However the players arrive there or even if they just happen by they should start looking around for a
  cause for the disappearances, the police will explain to them that a person will go missing from their
  home usually during the night, then around a month or so later show up dead, nearly all water and bodily
  fluids drained from the body, though the time of death is very recent, usually within hours of when the
  body was found. 
  If a doctor is consulted (there are a few private practices, and a large hospital) he will comment that with a
  time of death that recent the body can’t be dehydrated that quickly, they would have dropped dead a long
  time ago; the body should be in a less dehydrated state. The doctor concludes that the fluids must have
  been drained (very thoroughly) and then the flesh (inside and out) dried completely, he isn’t sure if even a
  very modern well equipped facility of any type could do the job in the time frame allotted, he reasons that
  there must be some error in the time of death figures (which can be confirmed to be correct as the police
  put them, at the investigators’ expense). 
  Events: 
  The scenario begins the night the most recent of the bodies that was found is stolen. The night watchman
  is knocked brutally unconscious, and remembers nothing of the incident; there is blood both from the
  victim and the attacker at the scene (the blood is retained for later analysis). There are fingerprints, badly
  smeared, but useable; they can be found with some difficulty, to be of one of the people who are currently
  missing! The investigators are questioned the next day (being one the few people that know the details of
  this case). After the investigators’ alibis are confirmed (a police officer escorted them home the previous
  evening, and was with them at the time of the attack). They will then be show the scene of the crime, the
  body was taken very rudely out a back window (1st story), there isn’t much evidence here that the
  investigators can use a SPOT HIDDEN roll will reveal a wedding ring lying in a corner where it seems it
  must have rolled, there is recent dried blood on it and the inscription reads: 
  “To my wonderful Husband David, Love Mrs. Cook” 
  Whether they found this or not they will be shown pictures of the body (before it was taken) looking for
  clues SPOT HIDDEN will also reveal the ring in the photo, and then on a LUCK roll of the most unlucky
  player will cause a police officer to remember seeing that somewhere, he’ll remember in 1d4 hours.
  Otherwise they can take the picture to the local jeweler who’ll be able to identify who he did that work for
  (the ring has designs on it that are unique and are cast directly into the metal [it looks like a rose wrapped
  around the ring]). 
  Another person will be taken tonight… 
  The same as all the others, this time though the body is not subsequently stolen from the police’s
  
  possession, if they haven’t already discovered the ring the police will compare the two photos, and notice
  that the only difference between the one that was taken and all the others is that it had a ring on, they will
  then realize that no identifying information is on any of the bodies, except for that one… The photo will
  then be taken to the local jeweler to try and discover the owner of that lost ring. 
  The address: 2234 Water St. 
  When the police arrive for questioning they will ask where David has been these evenings and have her
  identify the ring on the person in the morgue, a blood (or DNA if the 90’s) will be run, and the
  fingerprints and blood will be different from David’s (he is now a “different” person). He will also have a
  rock tight alibi; he was home at the time of last night’s disappearance (a summoned minion did the dirty
  work, this time). The police will be baffled and won’t pursue it much farther, though they will still
  consider him a suspect, the players may question also, but unless they have a different set of questions it
  won’t get too much, James will show the investigators his gallery (if they dare) he is clearly nervous but
  trying to hide it (psychology roll). If the characters REALLY push him he’ll crack, but he won’t be able to
  tell them where uncle Roger is. At this point the investigators should take action to protect James,
  otherwise come next morning David will have found out and have a minion (pick one) “deal” with him. 
  Climax: 
  Someone has found out that the investigators are poking about, during this time the investigators may
  make a SPOT HIDDEN roll to see if they notice a shadowy figure following them at key places (the
  morgue, the police station, the Cook household) the figure is far enough to be able to flee (75%) or get
  away with only a glimpse (15%) and will be caught and desperately fight (10%). If Roger is held to fight
  he will take a good whopping to defeat (he has a spell for strength or one for damage absorption active,
  this should allow him to seem like he is a supernatural creature). 
  1.) If the players defeat him they will discover plans for a complex rite to exhume David’s body and gain
  the favor of (pick a BIG nasty). This plan gives the exact location of the body (in the back yard of the
  Cook house). If the investigators crack the case this way David will be caught and thrown in prison, (the
  body in the back yard isn’t identifiable, it is partly a thick slime, and is taken to be one of David’s victims)
  where he will mysteriously wither in about a month… 
  2.) Or if they don’t get Roger (they only get 2 chances before he becomes much more cautious) and they
  set up a watch at the Cook house for 2d4 days they will see the rite begin to be performed, at this point
  they will have a nasty fight with Roger, who if he has any reason to believe that he is being watched
  (Keeper ’s determination) he’ll call a minion to kill the intruders. If not the players can sack him at a key
  point (90% chance they pick a GOOD key point, and don’t have bad side effects…) and he’ll go down
  without a fight, but will die soon and melt into slime, punishment for screwing up such an important spell.
  3.) The Rite is successful, a strangely glowing apparition will arise (vaguely David’s corpse) and begin to
  melt away from sight, this costs (5/2d10 SAN) and might (45% chance) activate their dormant pineal
  glands (allowing them to see many incorporeal nasties) for 1d6 days. 
  4.) They can stalk David for another month (if they understand the pattern of the murders) and attempt to
  catch him in the act of killing, if they get a picture or other evidence David is apprehended. (viewing the
  act of David’s attack costs 2/2d6 SAN) 
  Wrapping it up: (winning in these ways) 
  1.) For finishing the adventure in way 1, the players gain 1d10 SAN for knowing that Roger is dead, and
  knowing that David is caught. The police are happy and they attribute the mysterious death in prison to
  some as yet undiscovered disease. 
  2.) They gain 1d10+4 SAN for so obviously thwarting a horrible act. And for the knowledge that Roger is
  
  good and dead, will have them resting easy. They could also die easily in this way by being killed by the
  minion. If they have interrupted the spell at a bad point (10% chance) the Keeper is free to harm a few of
  them or kill depending on taste, this was a VERY bad time to interfere with cosmic forces that they don’t
  begin to understand. 
  3.) Hopefully they will run. No SAN is regained, something horrible happened and they were powerless to
  stop it, they hear about a few more murders, but then the news stops… 
  4.) They gain 1d6+4 san for knowing that David is not going to be killing any longer. However they must
  place the nail (if they recover it from the back of David’s neck) in a safe place, it can’t be destroyed by
  any known means (another adventure?) and it must be safeguarded or the whole nightmare will begin
  again. This applies to all endings, if the nail isn’t accounted for the same thing could happen in another
  place and time… 
  Any time the players get a hold of Rogers personal effects (he carries all the important ones with him)
  they could learn all his spells, they are all hideous and cost 4/2d6 SAN to learn them all and give 1d10
  Cthulhu Mythos.
  
SOURCE: textdata/thevault/Call of Cthulhu (CoC) (BRP) [multi]/Adventures/1920s/CoC - 1920s - Adv - The Events of One 2234 Water Street (.pdf