Fox Animation has optioned the mummy-themed young-adult book “The Anubis Tapestry: Between Twilights” by Bruce Zick. Fox plans a loose adaptation of the novel, which kicks off when a mummy’s curse condemns Dr. George Henry’s spirit to the Egyptian Underworld. While trying to free him, Henry’s son Chance plumbs the depths of the Underworld and encounters a variety of monsters. The tome, which creates a detailed mythology, was published in 2006.