Darren G. Davis 
Legend of Isis #6: Volume 1 [EPUB ebook] 

Isis confronts a new threat, known as The Council, who plan to cleanse the world of all who reject their one true god. When Scott is taken hostage, Isis— now completely powerless— agrees to trade her freedom for his. After the trade is complete, The Council welcomes Isis into their holy sanctuary, where she comes face-to-face with their o’mighty god herself… and Isis quickly realizes the the only person who could stop this maddening cult is the god whose word they follow.