Instant Eels are a species of animals from The Magic Tree Of Nowhere. Courage tries to protect the tree from Eustace (who wanted to cut the tree down). Courage uses the bulldozer the tree gave him to dig a moat with a small island surrounding the tree, and makes a massive sandcastle fortress to protect it. Courage takes a bag that says "Instant Eel" and he pours it out of the bag and into the water. A massive green gulper Eel emerges and roars at courage, before pausing to sing.