Soul Eater: The Perfect Edition manga volume 14 collects approximately 1½ original volumes in an omnibus hardcover edition which features story and art by Atsushi Ohkubo.

Maka and Soul rush to Eastern Europe, where Crona has been wreaking havoc. A brief encounter with another of Medusa's black-blood experiments turns the tables on the DWMA crew assembled there when Soul succumbs to the madness! What revelations await him while he's trapped in the Black Room?!