Children of the Whales Vol. 14 (manga)

Lykos and Ouni have been captured by Orca, but instead of organizing a rescue, Suou has ordered the Mud Whale to set sail for their new homeland. Chakuro won't just abandon his friends, though, and he's determined to find a way to save them. But Orca has just declared independence from the empire, and any rescue attempt will end up right in the middle of his cataclysmic plans!