Free! Cosmos World Chronicle - Book 4: Return of the Magic Six

The defeat of the Witches sparks a new era of peace for the inhabitants of Terabithia and Duniya. Reunited once more, the fully assembled Swimming Guardians are drawn into new conflicts both near and afar. From an incubus within an ex-volleyball player to the mysterious Infinite Circus, and skaters being kidnapped without a trace! However, a bigger scheme may lead to another war!