Pirates of the Kitty Sea. The Die is Cast!

The Kosh coastal waters are doomed: the Cat'sholm Strait is rising, and its islands are sinking. There is nowhere to escape - the strait is blocked by the armies of the Hyena Sultanate, and an uprising is brewing inside. And so, in such difficult times, a ship with golden sails enters the coastal waters...
Captain Johnny Sparrow, his faithful friend Kookaburra, and a mysterious passenger of the ship are heading to the Island of Oracle to retrieve the Die of Destiny. But this is just the beginning of their thrilling journey! The heroes will have to undertake many daring deeds, and in addition to this - build a submarine, find treasures, and meet the amazing underwater people who hold the richest cultural heritage of the islands.
Will the heroes be able to save the Kosh coastal waters? Does fate lead them, or do they choose their own destiny? And what role do sea lions play in all of this?