You find a house in Tabantha Frontier with people trapped inside, afraid of the nearby monsters.
Quest Location
The quest location is in Tabantha Frontier, at -2681, 1674, 0258.
Defeat the Monsters
Defeat the monsters sitting around the campfire near the house. Then check on the door of the house again.
Quest Reward
You will get a Spicy Elixir as a reward, as well as instructions on how to Shield Surf. You can take the shield next to the hearth if you wish.