Moblin Cave

The Moblin's Keep is an area in The Legend of Zelda: Link's Awakening. It is located just one screen to the east of Bottle Grotto, and houses the Great Moblin. This Mini-dungeon is required to enter Bottle Grotto, as the only way to defeat the creatures surrounding its entrance (before getting the Hookshot from the Catfish's Maw) is to let Bow-Wow eat them.

Events
After Link returns from Tail Cave, Bow-Wow can't be found at his usual post outside of Mrs. Kitty's house. Upon further inspection, he finds that the Great Moblin has stolen the pet as a way to get back at Mrs. Kitty for a seemingly ongoing feud between the two. After entering the Moblin's Keep and clearing a few small rooms of enemies, Link confronts the Great Moblin himself. A short battle proceeds, and Bow-Wow is freed after the moblin's defeat.

Aftermath
After Link has saved Bow-Wow, he hold onto her chain and lets her leap around, eating any foes nearby. She can devour any enemy, including the flower-like creatures gaurding the entrance to the Bottle Grotto. Upon her pet's return Mrs. Kitty thanks Link, but does not reward him elsewise.