Dance of the Gods Series by Mayer Alan Brenner

Only Maximillian the Vaguely Disreputable could track down the being who has kidnapped the Great Karlini in a bespelled castle. Soon Max finds himself caught up in a war between Death Gods, necromancers, and a sorcerer/detective.

No one knows whether gods or mortals are behind the power games in Oolsmouth, but the strange doings place Maximillian the Vaguely Disreputable, the Great Karlini, the Creeping Sword, and their comrades into a world of trouble.

Brenner returns to the world of Catastrophe's Spell and Spell of Intrigue, where trouble is brewing for mortals and gods alike. Maximillian the Vaguely Disreputable comes closer to solving the laws of conservation of magic and toppling the gods' power base while the Creeping Sword is drawn into the fighting between the gods.

Will Maximillian the Vaguely Disreputable give magic to the masses? Will the Creeping Sword find out who he really is? Will the warring factions of the gods come to their senses before all is lost? Mayer Alan Brenner masterfully pulls all the loose ends together in this fireworks-loaded finale, fourth in The Dance of Gods series.