Escape: The Curse of the Temple – The Maya Calendar is an expansion for the Escape base game that includes a double-sided game board on which players must activate gems in a certain order to put calendar tiles onto the calendar track — or else face the consequences!
To leave the temple, the players must have reached one of the last four spaces on the calendar track. If they are on the eighth space, however, they need one extra key to use the exit; on the seventh space they need two extra keys; and on the sixth space they need three extra keys. Good luck!
For more information: https://boardgamegeek.com/boardgameexpansion/158932/escape-curse-temple-maya-calendar