Towers & Trolls. Portals, #5

THE NINE TOWERS ARE RISING. SO IS THE MAN WHO MEANS TO CLAIM THEM. Aiyana came to Aetheria determined to put magic in the hands of people who had none. Her search leads to the legendary Nine Towers-a city buried beneath centuries of ruin and guarded by enough power to remake the world. At her side are Reggie, an archaeologist torn from the 1920s, and Griffon, a gamer reborn as a gnome gladiator. They expect ruins.
They do not expect an army of trolls, an ancient sword with a will of its own, or the aeifain quietly steering Aiyana toward his private war. To raise the towers and keep their magic free, the three must unite old enemies, survive a city built to contain more than knowledge, and stop a man ready to become a god. If they fail, Aetheria's new age of magic will begin in tyranny. Towers & Trolls is Book Five of the Portals series, a fast-moving adult fantasy adventure of dangerous magic, dark humor, second chances, and unlikely heroes.