In "Hilo Waking The Monsters" by Judd Winick the story is very much a action packed story. In the beginning Hilo, a robot and his human just came back to a normal life after saving the world. His sister was on the same planet, but they couldnt find her. When they finally return to Earth, they some how found her there. Hilos friends do not trust her, but Hilo does. Find out what happens by getting the book and reading it.