Book excerpt: In this thrilling first episode of "Troll and Unicorn," our unlikely duo stumbles upon a mysterious crashed spaceship while on their way to the enigmatic "mysterious mountain." What starts as a simple detour, turns into a wild adventure involving futuristic technology, cyborg dinosaurs, giant banana robots, and two time-traveling children. As they navigate the dangers of the malfunctioning ship and its impending destruction, Troll and Unicorn must use their wits and magic to escape in time to save those kids from the strange metal cave.