Each title in this new series is full of intriguing mazes and maze-type puzzles, lined together by a story of Cat and Mouse’s daring exploits. In Treasure Trails, the fun starts when Cat’s Great Aunt Matida departs on one of her expeditions. Cat and Mouse are left with her pet spider, Boris, and a series of notes, maps and clues. They need you to help them follow these mysterious trails and find the treasure.