Master let go of the Book of the Damned. Despite doing that, the book didn't return to his inventory. It also didn't stop the Demonic Contract. The crimson threads from the book continued to channel energies to his legion. The book floated beside him.
Another magic staff appeared in his hand that was originally holding the book. Spell formation started to form from this magic staff.
Jack charged forward. Under the Sphere of Tiamat, his already incredible speed was boosted. Even so, he failed to reach Master before Master completed the casting. Master's speed of casting was simply inhuman.
The spell was, of course, the Greater Dispel. The Sphere of Tiamat encasing Jack's body vanished.
Jack was prepared. As soon as the sphere was gone, the blood veins in his body bulged. They emitted crimson fog. This was the Devil Blood ability from his Ring of Devil Incarnate.