Pops shares a theory about the attacks. Jack and Alyssa try to keep an eye on the other pledges. At the Temple, Jack encounters a notorious figure.

Jack learns he's been selected for a rival secret society. Later, he gets a lesson in magic -- and discovers that every spell has a price.

Jack proposes an alliance with the Knights, and Randall teaches him how to harness his powers. Meanwhile, Edward takes Alyssa under his wing.

As the Order prepares to conduct a dangerous, sinister spell, the Knights enlist Jack to sabotage their plans.

Alyssa confronts Jack about his secret. Headmistress Vera questions Edward about the Vade Maecum and sends Gabrielle on a truth-seeking mission.

Alyssa helps the Knights search for Randall and stumbles upon a doctor's twisted experiment. Edward is visited by the Vade Maecum's previous owner.

Consumed by ambition, Edward clashes with Vera -- and Alyssa is caught in the middle. Jack's brush with the Vade Maecum ignites a painful ordeal.

The Knights plot to thwart Edward's plan by kidnapping his son. Gabrielle and the Hermetic Counselor interrogate Lilith.

After having the Knights' memories wiped, Vera plans to induct them into the Order. But her new pledges prove hard to control.