inside the teams are locked in a dungeon with hundreds of different keys on the ground. Inside a barrel, they find a map with X marking the prize money, as well as the clue "He Be Loot", which is an anagram for Boot Heel, where the real key is hidden. Suzie speaks about how in one era they used to hide things in the soles of shoes, and when Marianne picks up one of the boots, the heel snaps off and the key is revealed. Despite not properly solving the anagram, the girls get a strong lead on Saskia for the final straight, the location of the treasure, Craigmillar Castle. Once there, neither Suzie or Nat are permitted to enter the grounds while the game is still in play, meaning Mairianne and Saskia will be on their own. Arriving ahead, Mairianne runs round the area with her map, eventually finding the next clue, two gravestones with one marked as IR, and one as ER. Meanwhile, Saskia and Nat have also escaped the dungeon, and are right behind Marianne in a taxi, with Saskia offering the driver money if he can get her there immediately. Mairianne is now faced with a £50,000 decision: she must pick which grave to dig at. One contains the gold, another the poison chalice. To help her, she has a clue "In my end is my beginning" on a piece of parchment, along with a symbol. The quote is actually of Mary's before her execution at Elizabeth's hands, referring to her son James, who would take the monarchy and start the reign of the Stuarts over the Tudors. Thus, in her end is her name's beginning against Elizabeth. The symbol is also made up of the characters in her name, overlapped to make MARIE STUART. While ER is Elizabeth Regina, IR is Jacobus Rex (as there was no J in the Latin alphabet, I was used to represent King James), meaning the IR grave contains the treasure. Along the way, other clues were also present, like the London Library being on St. James's Square, the contestants running through St. James's Court while running up the Royal Mile, and IR written on the ceiling in the private chambers at Edinburgh Castle. But has Mairianne spotted these clues? She decides that the symbol is the crest of Elizabeth, and digs at the ER grave. While still digging, Saskia