Evenlight. Meratis Trilogy, #3

Jeff Powell wants nothing more than to leave his adventures behind him, but he owes a debt and the Sisters intend to collect, no matter the cost. Stealing Cassie in exchange for Jeff's returned imagination, he and Venn are enlisted to save Andvell from destruction. With Brady's mind being taken over by Talfyr's, Jasmine unwell, and Jayden brooding over his broken heart, Jeff must rely on the strength of their friendship to find Cassie and save multiple worlds from being torn apart by growing rifts in the Veil.
As the doorway between worlds closes, Jeff needs to choose which side he'll end up on, and what he's willing to give up before the end. The Meratis Trilogy centres around author Jeff Powell, who wakes up in his sword-and-sorcery fantasy world. Initially an arrogant and close-minded character, Jeff has his eyes opened to a world of dragons, magic, and assassins. Faced with an evil he could never have imagined, Jeff is pushed to his limits and forced to rise to the most unusual challenges.