Children of the Whales manga volume 7 features story and art by Abi Umeda.

The Sea of Sand harbors many mysteries, and an encounter with one of them awakens deep memories of the past for the Eldest of the Mud Whale. But everyone is still reeling from the recently revealed harsh secrets about the true nature of the Mud Whale. How can Chakuro and the others handle the new knowledge these strange visions grant?