In the 1980s, an obscure graduate student was the foremost scholar on a newly discovered gnostic tractate entitled Thunder, Perfect Mind. Previously, only one Harvard professor had significantly researched the work, but his untimely death left her alone in the field. On her own within the university stacks and the Egyptian intertestamental past, she struggles to break the code of a 2,000 year old buried writing, which in turn leads her down unexpected...