A creepy mansion. Ten puzzles. Can you get out in time? For generations, rumors have circulated about the lakeside ruin of the old Tennison mansion. It's said that on foggy, moonlit nights, the spirit of the late Catherine Tennison glides across the waters of the lake. No one has successfully entered the eerie house in over one hundred years.

Now friends Eli and Leah will dare to journey inside. Together with Eli's little brother Dominic, they solve the puzzle that grants them entry! But the Tennison mansion proves to be a trap from which there may be no escape...