This October, that mythology will be expanded — and, perhaps, explained — in Apocrypha: The Legend of Babymetal, a graphic novel collaboration between Kobametal, Amuse Group USA, and Z2 Comics. (Amuse Group USA is a subsidiary of the band’s talent agency, Amuse Inc.; the company has also partnered with Warner Bros. to develop a cartoon based on the band.) Apocrypha will be illustrated by Super Pulp Science Magazine artist GMB Chomichuk.

The graphic novel continues Z2 Comics’ line of books created in collaboration with musicians, which has so far featured work by Dan Auerbach of the Black Keys, bluesman Robert Finley and DJ Paul Oakenfold. Co-publisher Sridhar Reddy is coy when it comes to what Apocrypha will reveal about the band, saying in a statement, “With the book still months from publication, it’s too early to reveal much. In the months to come, Babymetal fans can expect more announcements, but today I would say the question we should be asking is not who is Babymetal, but what is Babymetal?”

Apocrypha: The Legend of Babymetal will be available for pre-order ahead of its October release at Amazon, Barnes & Noble, Books-A-Million, and Kinokuniya USA, with Barnes & Noble, Books-A-Million, Kinokuniya USA and Japanese online market Asmart each offering a limited-edition version of the book with a special cover. More information about the book — including its official release date — will be released in coming months.