“It’s called the Yielding,” she said, a chill brushing down her spine. “The bit of magic we have. We usually cannot summon or wield, but for one moment in a witch’s life, she can summon great power to unleash upon her enemies. The cost is that she is incinerated in the blast, her body yielded to the Darkness. In the witch wars, witches on both sides made Yieldings during every battle and skirmish.”