Note: This is the second game in the 50 Clues Season 2 / Hunt for Maria Trilogy. Episode 1 should be played prior to playing this title and Episode 3 should be played after playing this title.

At an unknown location, children are trapped in the dark. Their abductor is dead, and you need to locating the hiding place and save the children before it is too late. ”The Secret of the Mark” is the second installment of the Hunt for Maria trilogy.

50 Clues® is an immersive puzzle game that offers the experience of an escape room, but in a format that can be played at anywhere.