Doctrine of Labyrinths Series by Sarah Monette

Mélusine — a city of secrets and lies, pleasure and pain, magic and corruption — and destinies lost and found. Felix Harrowgate is a dashing, highly respected wizard. But his aristocratic peers don't know his dark past — how his abusive former master enslaved him, body and soul, and trained him to pass as a nobleman. Within the walls of the Mirador — Melusine's citadel of power and wizardry — Felix believed he was safe. He was wrong... moreMélusine — a city of secrets and lies, pleasure and pain, magic and corruption — and destinies lost and found. Felix Harrowgate is a dashing, highly respected wizard. But his aristocratic peers don't know his dark past — how his abusive former master enslaved him, body and soul, and trained him to pass as a nobleman. Within the walls of the Mirador — Melusine's citadel of power and wizardry — Felix believed he was safe. He was wrong. Now, the horrors of his previous life have found him and threaten to destroy all he has since become. Mildmay the Fox is used to being hunted. Raised as a kept-thief and trained as an assassin, he escaped his Keeper long ago and lives on his own as a cat burglar. But now he has been caught by a mysterious foreign wizard using a powerful calling charm. And yet the wizard was looking not for Mildmay — but for Felix Harrowgate." Thrown together by fate, the broken wizard Felix and the wanted killer Mildmay journey far from Melusine through lands thick with strange magics and terrible demons of darkness. But it is the shocking secret from their pasts, linking them inexorably together, that will either save them, or destroy them. less

Felix Harrowgate was a dashing and powerful wizard until his former master wrenched Felix’s magic from him and used it to shatter the Virtu—the orb that is the keystone for the protection and magic of the wizards of the city. Felix has painfully clawed his way back to sanity, and his only chance to reclaim the life he once knew is to repair the seemingly irreparable—to restore the Virtu... moreFelix Harrowgate was a dashing and powerful wizard until his former master wrenched Felix’s magic from him and used it to shatter the Virtu—the orb that is the keystone for the protection and magic of the wizards of the city. Felix has painfully clawed his way back to sanity, and his only chance to reclaim the life he once knew is to repair the seemingly irreparable—to restore the Virtu. Mildmay the Fox was an assassin and a cat-burglar—until a curse caught up with him and his life changed forever. Haunted by death, his leg damaged by the curse that should have killed him, he does not know what awaits him in Mélusine, but for good or ill, his fate is tied to Felix’s, by blood…and by magic. On their journey, Felix and Mildmay will encounter friends and enemies old and new, vengeful spirits and ancient goddesses. They will uncover secrets better left buried. But nothing can prepare them for what awaits their return: Felix’s former master, the cruel and decadent wizard Malker Gennadion… (Publisher’s description) less

The dashing wizard Felix Harrowgate has reclaimed his sanity, magic, and position in society. But even as he returns to his former place in the Mirador-the citadel of power and wizardry-there are many who desire his end. Mildmay the Fox is an ex-assassin, a cat-burglar, and Felix's half-brother. Tied to Felix by blood and magic, Mildmay goes where Felix goes-even into the Mirador. There, Mildmay finds himself drawn to an alluring spy of the Bastion, a rival school of wizards... moreThe dashing wizard Felix Harrowgate has reclaimed his sanity, magic, and position in society. But even as he returns to his former place in the Mirador-the citadel of power and wizardry-there are many who desire his end. Mildmay the Fox is an ex-assassin, a cat-burglar, and Felix's half-brother. Tied to Felix by blood and magic, Mildmay goes where Felix goes-even into the Mirador. There, Mildmay finds himself drawn to an alluring spy of the Bastion, a rival school of wizards. The Bastion desires above all else to bring down the Mirador, and Felix is the key to its destruction. But Mildmay cannot let Felix stand alone, and will fight to save both his brother and his city from certain ruin. less

The spellbinding conclusion to the brilliant fantasy series by the author of The Mirador and Mélusine. Exiled from Mélusine for the crime of heresy, the once powerful Cabaline wizard Felix Harrowgate and his half-brother Mildmay, former cat-burglar and assassin, journey to Corambis to face judgment from a ruling body of wizards. Corambis, however, is a land plagued by civil strife... moreThe spellbinding conclusion to the brilliant fantasy series by the author of The Mirador and Mélusine. Exiled from Mélusine for the crime of heresy, the once powerful Cabaline wizard Felix Harrowgate and his half-brother Mildmay, former cat-burglar and assassin, journey to Corambis to face judgment from a ruling body of wizards. Corambis, however, is a land plagued by civil strife. Kay Brightmore, the Margrave of Rothmarlin, is part of an insurrection to restore the monarchy in the southern half of the country. In desperation, Kay and his rebels seek out the engine of Summerdown, an ancient magical device rumored to have terrible powers. Once the engine is awakened, only a powerful wizard can stop its awesome potential for destruction. Felix and Mildmay arrive just in time for their greatest challenge-and ultimate destiny... less