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.
Fighting Club
Farting Flippy jump
west shooter
三国
Ninja In War
Shoot or Die
Athlete Girl Escape
Stick Santa
Zombie Apocalypse Tunnel Survival
Fireboy and Watergirl Maze
Adopt a Pet Jigsaw
Rolly Cube
Equations Right or Wrong
Haunted House Hidden Ghost
Monster Boxes
Candy House Escape
Minecraft Remake
Ice Cream Making
MiniCat Fisher
Amelies Mahjong
Rectangle Path
FireBlob
Cave
Anime Kawaii School Girls Dress Up
Little Dino Adventure Returns
London Crime City
Anime Fantasy Dress Up
Princess Winter Style
Flying Jelly
Happy Valentines Day Spot the Difference