Complex sentence: In "The Lost Hero" by Rick Riordan, Khione, daughter of Boreas, appears as one of the major antagonists, and tries to prevent Jason Grace, Piper McLean, and Leo Valdez from saving Hera.
Split into simpler sentences: In "The Lost Hero" by Rick Riordan, Khione, daughter of Boreas, appears as one of the major antagonists. Khione tries to prevent Jason Grace, Piper McLean, and Leo Valdez from saving Hera.