Burgis, Stephanie. Queens of Villainy #1

"A Bramble book published by Tom Doherty Associates/Tor Publishing Group"--Title page verso

In a Gaslamp-lit world where hags and ogres lurk in thick pine forests, three magical queens form an uneasy alliance to protect their lands from invasion, and love turns their world upside down

Includes an excerpt from the author's novel "Enchanting the fae queen" (pages 288-294)

Queen Saskia is the wicked sorceress everyone fears. After successfully wrestling the throne from her evil uncle, she only wants one thing: to keep her people safe from the empire next door. For that, she needs to spend more time in her laboratory experimenting with her spells. She definitely doesn't have time to bring order to her chaotic library of magic. When a mysterious dark wizard arrives at her castle, Saskia hires him as her new librarian on the spot. "Fabian" is sweet and a little nerdy, and his requests seem a little strange; what in the name of Divine Elva is a fountain pen? But he is getting the job done. And if he writes her flirtatious poetry and his innocent touch makes her skin singe, well. Little does Saskia know that the "wizard" she's falling for is actually an Imperial archduke in disguise, with no magical training whatsoever. On the run, with perilous secrets on his trail and a fast-growing yearning for the wicked sorceress, he's in danger from her enemies and her newfound allies, too. When his identity is finally revealed, will their love save or doom each other?--