It's no secret that I love Megan Derr's books. I recommend them to friends whenever possible. Have you read Tournament of Losers yet? No?? Well go read it! What about The Lost Gods series? Read that one too. 
 The Only Option brings us back to Derr's fantasy world where different beings (Necromancers, Dragons, Queen's Hands, etc) co-exist in relative peace. Rochus is forced into a marriage because Tilo needs help to save his lands and so far his pleas have gone unanswered. When in need, force a necromancer to become your husband to secure his magical assistance. Derr 101. 
 I loved Rochus and his insecurities only made him more endearing. He doesn't believe anyone would fall for a 43 year old necromancer with pale skin and blue teeth. Little does he know... 
 Tilo's character was interesting and I've always had a soft spot for dragons. He was a bit annoying at times because he's quick to pout or cry. But I guess that's what happens when you're a 20 year old dragon trying to save a kingdom on your own. 
 Everything about this book was great. I loved the magical/ghost companions and the sweet interactions between Rochus and Tilo. The age disparity just made it that much more precious. 
 Here's another to add to the list of Megan Derr books I'll be recommending! 
 I received a free ebook copy via Netgalley in exchange for an honest review.