Every 25 moons, the mysterious Sfynx open a gateway to their sunken city... but only the adventurers able to solve 9 riddles before the clepsydra empties will be granted access to its vanished splendours and forgotten knowledge. Are you up to the task? You must solve 9 riddles by manipulating tiles on a 5x5 grid (called the Antechamber) so that the positions of the tiles match given patterns shown on the Riddle cards. You'll only have a limited amount of turns, so you'll need to make the best use of your actions.