They Have the Scent — Tim Niederriter

Leoten is an extraction agent tasked with the retrieval of endangered individuals throughout the dragon lands. He's never considered the extinct creatures from which his region takes its name. Tasked with the protection of a flame magus, he dives into a mission both closer to home and farther afield than he's ever done before. At the heart of that mission lies the secret Iron Dragon Project and the monsters that seek to destroy it. They Have the Scent is the first in a series of fantasy espionage stories in the world of Tenlyres.