The Cinder Spires have safeguarded humanity for centuries. Within their halls, aristocratic houses rule, developing scientific marvels and building fleets of airships for defense and trade. Now, the Spires hover on the brink of open war. The guns of the great airship fleets that control the skies between the last bastions of humanity will soon speak in anger, and Spire Albion stands alone against the overwhelming might of Spire Aurora's Armada and its new secret weapon --- one capable of destroying the populations of entire Spires. A trading summit at Spire Olympia provides an opportunity for the Spirearch, Lord Albion, to secure alliances that will shape the outcomes of the war. It will take daring, skill and no small amount of showmanship to convince the world to stand with Spire Albion --- assuming that it is not already too late.

Harry Dresden has faced terrible odds before. He has a long history of fighting enemies above his weight class. The Red Court of vampires. The fallen angels of the Order of the Blackened Denarius. The Outsiders. But this time it’s different. A being more powerful and dangerous on an order of magnitude beyond what the world has seen in a millennium is coming. And she’s bringing an army. The Last Titan has declared war on the city of Chicago, and has come to subjugate humanity, obliterating any who stand in her way. Harry’s mission is simple but impossible: Save the city by killing a Titan. And the attempt will change Harry’s life, Chicago and the mortal world forever.

When the Supernatural nations of the world meet up to negotiate an end to ongoing hostilities, Harry Dresden, Chicago's only professional wizard, joins the White Council's security team to make sure the talks stay civil. But can he succeed, when dark political manipulations threaten the very existence of Chicago --- and all he holds dear?

Since time immemorial, the Spires have sheltered humanity, towering for miles over the mist-shrouded surface of the world. Captain Grimm commands the merchant ship Predator. Fiercely loyal to Spire Albion, he has taken their side in the cold war with Spire Aurora, disrupting the enemy’s shipping lines by attacking their cargo vessels. But when the Predator is severely damaged in combat, Grimm is offered a proposition from the Spirearch of Albion --- to join a team of agents on a vital mission in exchange for fully restoring Predator to its fighting glory.

Harry Dresden's life is a mess. His top client (and close friend), Lt. Karrin Murphy, no longer trusts him. Chicago`s underworld and the cops alike think he's mobster Johnny Marcone's supernatural enforcer. And the enigmatic White Council continues to view him with suspicion. If all that weren't enough, a pack of werewolves have unleashed a wave of terror on the Windy City.

If circumstances surrounding a crime defy the ordinary and evidence points to a suspect who is anything but human, the men and women of the Chicago Police Department call in the one guy who can handle bizarre and often brutal phenomena. Harry Dresden is a wizard who knows firsthand that the everyday world is actually full of strange and magical things --- most of which don't play well with humans.