Complex sentence: That night, Theo eavesdrops on a meeting of Luke and other members and discovers that Julian's death was orchestrated so the group could use the baby as a political tool to support the coming revolution.
Split into simpler sentences: That night, Theo eavesdrops on a meeting of Luke and other members. He discovers that Julian's death was orchestrated by the group so they could use the baby as a political tool to support the coming revolution.