Go on signs. Kolosov I.A.

They live in the tower since birth - four guys and three girls. Their parents - two couples - ended up in the tower after the end of the world, the last stage of which was a worldwide flood, and now Moscow is a water surface from which the tops of the heights stick out.

to avoid fratricide and survive, they should survive Leave the inherent refuge, solve the encryptions of the late father and go the way in accordance with the symbols that were used until the end of the world.