Bridge of Fire, Part 3: Into the Sun. Woodcutter's Grim, #5

For the ten generations since the evil first came to Woodcutter's Grim, the Guardians have sworn an oath to protect the town from the childhood horrors that lurk in the black woods. Without them, the town would be defenseless...and the terrors would escape to the world at large. A shape-shifting goat, William Gruff escaped being bound to the evil pervading Woodcutter's Grim, the sole shelter for supernatural creatures.
Years later, he and his pregnant wife, Adaryn Azar, a phoenix, have no choice but to flee there themselves. But just one phoenix can exist in the world. Will the powerful magic Liam wields consume him before he can build the only bridge that can take him and Adaryn into the sun of Eternal Paradise?