Dark Fire by Delta James

Can she trust a dragon with her heart?

Tevryn’s been given a mission by his leader, to find out who is behind the attacks on the dragons and the laboratory they are using for their experiments. While attending an event where several of the suspects will be present, he runs into a complication he never saw coming… his eternal flame.
Delaney is a brilliant architect with an eye for uncovering unusual secrets. She accepts a job offer from a wealthy tech mogul to build a monument based on an ancient prophecy. The search for the prophecy thrusts her into a world of magic, unparalleled passion, and deceit.
Finding his eternal flame at the center of his investigation changes everything. It doesn’t matter that Delaney is working for his enemy who is seeking to destroy the world… she’s his and he will protect her.