The Stone Demon

The stunning conclusion to the international mega-hit series.

The just-unleashed demon hordes have delivered an impossible ultimatum to the Order of the Crow: produce the Philosopher’s Stone, or suffer a reaper storm of demonic tribulation. If alchemist’s apprentice Donna Underwood can’t recreate the mythical artifact, the world will be plunged into a devastating modern-day Dark Age. Putting her dangerously unpredictable powers against a vengeful demon king, two maleficent faery queens, and an immortal magus with his own shadowy agenda, Donna must be willing to make the ultimate sacrifice—but this time, even death may not be enough.