Bull Moon Rising by Ruby Dixon

From Ace Books:

In a world of magical artifacts and fantastical beings, a woman determined to save her family joins forces with an unlikely partner in this captivating special hardcover edition of USA Today bestselling Ruby Dixon’s new steamy romantasy.

As a Holder’s daughter, Aspeth Honori knows the importance of magical artifacts . . . which is why it’s a disaster that her father has gambled all of theirs away. Now in danger of losing their hold—and their heads—if anyone finds out the truth, Aspeth decides to do something about it. She’ll join the Royal Artifactual Guild and the adventurers who explore ancient underground ruins to retrieve the coveted arcane items.

It’s a great plan—with one big problem. The guild won’t let her train because she’s a woman. Aspeth needs a chaperone of some kind. The best way to get around this problem? Marry someone who will let her become an apprentice. Who better than a surly guild member who needs a favor of his own? He’s a minotaur (it’s fine) who is her teacher (also fine) . . . and he’s about to go into rut (which is where it gets tricky). He also has no idea she’s a noble (oops) and will want nothing to do with her if he finds out the truth.

Now Aspeth just needs to pass the guild tests, thwart a fortune hunter, and save her hold. Oh, and survive a rut with her monstrous, horned husband, who she might be falling in love with.

It’s time to dig deep. Literally.