Order A Horn of Onyx on Amazon, at Barnes & Nobel, or Order signed copies at Parnassus or Bound Booksellers!

The sequel to a dagger of lightning, A horn of onyx, will release march 31st 2026! Come to the free release event!

Sometimes the price of freedom is everything you love.

Imogen successfully won her freedom; escaping the Molnairian palace and rescuing Wells and his soldiers from annihilation. But even as her knoma grows stronger, Imogen learns raw power isn’t enough to win a war.

As Imogen grapples with the chaos of battle—and a bloodthirsty unicorn named Prism—the consequences from her palace escape continue to follow her. Drawn into the ruthless games of two opposing courts, she finds herself out of her depth, yearning only for a peaceful life with her mate. But if she can't curb her impulsivity and adapt to life in the army, she may find herself trapped between not one, but two warring kings.

"Our mouthy, never-say-d*e female lead is back and this time she’s bringing the storm that will shock the entire realm. This book two is delightfully satisfying and packed with action!" —Alisha Klapheke, USA Today Bestselling Author of the Bound by Dragons series

"A Horn of Onyx is a sequel with a life of its own. Satisfying in every way, full of the brilliant pacing (and banter) I have come to know is Lyons' trademark. I adore it with my whole heart. And now I want a battle unicorn."—Erica Ivy Rodgers, author of the Waking Hearts duology

“For all the ways A Dagger of Lightning is a coming of (middle) age for our heroine Imogen, A Horn of Onyx is her coming of rage. Headstrong and fierce, Imogen learns that team work really does make the dream work, especially when you have a blood thirsty unicorn bestie named Prism. Filled with Lyons’ signature wit, political tension that will keep you turning pages  well past your bed time, and a fated mate connection for the ages, you’ll be hooked to the very last sentence.”—Melissa Grace, author of Where You Lead