Rage - Kingdom Chronicles, #7

After a mage entry exam ends in disaster, Arch Mage Cani ends up cursed, bound to suffer a slow and painful death. Cani's husband, Nabis, is distraught. Forced to watch his wife burn from the inside out with no chance of a counterspell, he has only one chance: one of the mage hopefuls has a custom spell - a death ward - that could save her. With the students in custody, Nabis has no option other than to undergo a radical transformation, and what should have been a quick extraction mission turns into a dangerous situation no one could see coming.