Ursula The Guardian of the Oceans by Janice Boynton

Journey into a breathtaking undersea adventure and encounter Ursula the sea dragon who protects the oceans from Larry goose's military. However because some of the pages and it's chapters are inspired by Bad ending from Zeoworks' Slendytubbies III, Viking war scene from How to train your dragon II, and Pandorian war scenes from James Cameron's Avatar. Will you save the oceans by battling Monstruga's minions and Marry goose's minions?