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"First published in Japan in 2016 by AKITA PUBLISHING CO., LTD., Tokyo."--Colophon

"In the endless sea of sand drifts the Mud Whale, a floating island city of clay and magic. In its chambers a small community clings to survival, cut off from its own history by the shadows of the past. The promised haven of Amonlogia is closer than ever, but the dark history of the Mud Whale still poses a terrible threat to its people. Somehow, learning the truth about the past has freed Ouni's thymia from any constraint, and he is forced to lock himself away to avoid hurting others" -- Back cover. d

Reads from right to left

Rated T+, for Older Teen and is recommended for ages 16 and up. Contains violence and death

In English, translated from the Japanese