Complex sentence: During the journey, Flint learns that his playmates have been kidnapped and taken to Galaxy's island headquarters, then uses his power of self-induced suspended animation to fool his captors into thinking they have successfully killed him.
Split into simpler sentences: During the journey, Flint learns that his playmates have been kidnapped and taken to Galaxy's island headquarters. He then uses his power of self-induced suspended animation to fool his captors into thinking they have successfully killed him.