While armies of the Shadowrealms gather and Machiavelli goes to Alcatraz to kill Perenelle Flamel, fifteen-year-old twins Sophie and Josh Newman accompany the Alchemist to England to seek Gilgamesh.

Back in London, fifteen-year-old twins Sophie and Josh Newman must determine whom they can and cannot trust as they search for both Scatty and an immortal who can teach Josh the magic of fire, while Doctor Dee and Machiavelli continue to seek power.

Fifteen-year-old twins Sophie and Josh Newman continue their magical training in Paris with Nicholas Flamel, Scatty, and the Comte de Sant Germaine, pursued by Doctor Dee and the immortal Niccolo Machiavelli.

"The twins of prophecy have been split. Nicholas Flamel is near death. John Dee has the swords of power. And Danu Talis has yet to fall. The future of the human race lies in the balance--how will the legend end?"--Provided by publisher.

Fifteen-year-old Josh has chosen to side neither with his twin sister Sophie nor with the Alchemyst, Nicholas Flamel, but rather to fight alongside Dr. John Dee and the mysterious Virginia Dare, while the immortal Machiavelli and Billy the Kid follow the Elders' plans to set loose the monsters of Alcatraz on San Francisco and trigger the end of the human race.

Despues de huir a Ojai a París y escaparse de Londres, Josh y Sophie Newman están, por fin, en casa. Sin embargo, no todo está solucionado: ninguno de los dos ha conseguido la pericia mágica que necesitan para protegerse de los Oscuros Inmemoriales. Han perdido a Scatty y el doctor John Dee todavía anda tras ellos. Por otro lado, Dee también tiene problemas: quiere recuperar el Libro de Abraham completo y necesita la ayuda de los Arcontes. Para...