There are three books and each of it has numbers on it. Look for the number which is not seen to the other, there's one for every book. Find those number before the time runs out.
Galactic War Space Game
Fallerz.io
ZOMBIE HUNTER: Offline Games
EG Hot Jewels
Fruits and Vegetables Word
Rings Fall
Drifting Earth
Vampire
Kids Dentist
Geometry Neon Dash Subzero
Diagonal Strong
Noob Parkour
Race.io
Merge Rush 2048
Master Soccer
SpongeBob SquarePants Flap Game Adventure
VALTO 2
Pet Party Columns
Puzzle Game Girls
Baby Toy
Word.Puzzle.Search
Amaze Rope - Rope Unroll
MTB DownHill Extreme
Bubble Boy
Disc Duel - Gumball
Dream of Farmers
Impossible Track Jeep Driving Game 3D
Flying Cut
Ladder Ranking Run
Cute Road