Complex sentence: One volume, "Voyage of Terror", was almost totally out of the setting, where Pip is accidentally transported to ancient Greece by Merlin and has to venture with Jason and the Argonauts in a Greek mythology setting.
Split into simpler sentences: One volume, "Voyage of Terror", was almost totally out of the setting. In it, Pip is accidentally transported to ancient Greece by Merlin and has to adventure with Jason and the Argonauts in a Greek mythology setting.