▁use ▁this ▁rating , ▁which ▁was ▁replaced ▁by ▁the ▁" Int ro duct ory " ▁label ▁given ▁to ▁games ▁such ▁as ▁W ish br inger . ▁It ▁is ▁Info com ' s ▁tw elf th ▁game . ▁ ▁Gal ley ▁and ▁Lawrence ▁later ▁wrote ▁Moon m ist ▁for ▁Info com . ▁Lawrence ▁is ▁also ▁an ▁author ▁who ▁wrote ▁more ▁than ▁ 6 0 ▁books ▁aim ed ▁at ▁children ▁and ▁young ▁adult s . ▁ ▁Plot ▁The ▁player ' s ▁character ▁is ▁a ▁young ▁invent or ▁and ▁marine ▁scient ist . ▁A ▁research ▁facility ▁called ▁the ▁A quad ome ▁issues ▁a ▁call ▁for ▁help , ▁indicating ▁that ▁the ▁under se a ▁structure ▁is ▁being ▁attacked ▁by ▁a ▁sea ▁mon ster . ▁With ▁helpful ▁assistant ▁T ip , ▁the ▁player ▁must ▁navigate ▁to ▁the ▁A quad ome ▁in ▁the ▁new ▁un test ed ▁two - person ▁sub marine ▁Sc im itar ▁and ▁investigate ▁the ▁problem . ▁But ▁that ▁isn ' t ▁all ... ▁it ▁looks ▁like ▁there ▁may ▁be ▁a ▁sab ote ur ▁within ▁the ▁A quad ome ▁as ▁well . ▁ ▁The ▁game ▁has ▁ 3 0 ▁locations . ▁ ▁Fe el ies ▁The ▁Se ast alk er ▁package ▁held ▁the ▁following ▁feel ies : ▁A ▁log book ▁for ▁the ▁Sc im itar , ▁including ▁a ▁letter ▁from ▁" The ▁President " ▁con gr at ulating ▁the ▁player ▁on ▁accept ance ▁into ▁the ▁Disc overy ▁Squad ▁Four ▁double - s ided ▁" top ▁secret ▁Inf oc ards ", ▁containing ▁hints ▁printed ▁in ▁blue ▁in