Mole lived happily underground and prepared for winter, but then humans started building a house nearby and destroyed Mole's hole! Now Mole need to set off for a dangerous journey through the subway, ventilation and underground tunnels to find a new home. This app will be useful for all ages, but it will be of the highest educational value for preschoolers and first- and second-graders. The author is a child psychologist. The story includes educational games and tasks to train logic, attention, memory and spatial intelligence. The app will be of most fun to boys 7, 8 or 9 years old who like mazes, subway and underground structures. The most interesting mini-games are also available separately, with 4 levels of difficulty each. The highest difficulty is targeted at adults and kids with high intelligence. Example tasks in the game: pick the correct object, base on logic conditions; find the correct hole by its address; mazes; puzzles; recall which mouse ate what; sudoku; find all hidden worms; memory game; classification and other educational and logic games. The app comes in 15 languages: English, Russian, German, French, Spanish, Brazilian Portuguese, Italian, Dutch, Japanese, Swedish, Danish, Norwegian, Polish, Czech and Turkish.