Volume four brings Nicholas Flamel, his wife Perenelle, and the twins Sophie, and Josh back to San Francisco where the story of this world of gods and immortals began. It starts off in high spirits as we learn that Josh and Sophie aren't the only twins. Scathaich has one known as Aoife, who kidnaps Sophie, who goes with her mistakenly thinking it's Scathaich. Meanwhile Dee is fleeing the Dark Elders who balme hi for his failure to get the codex in its entirety.
Joan of Arc and Scathaich meanwhile are still stuck in the shadow lands and end up alongside the Comte de Saint-Germain, Palamedes and Shakespeare. The swordless Josh gets his chance at fire magic form the master of it: Prometheus of course. The problem is that he's still somewhat disaffected and falls under the spell of Dee. Again, another adventure-filled and entertaining volume.