A Monster's Diet is a quest in Might & Magic: Heroes Online.
A worm hunter working for the Black Fang has encountered one of the giant sandworms. He can give out a reward if the heart of the sandworm is taken. To lure out the sandworm, the worm hunter points the hero to speak to the Black Fang stablemaster, who is located close to the Hierophants' tomb. The stablemaster is amused that the hero will take on the sandworm, but reminds that the hunter will have to pay for the horses sooner or later. With the horse obtained, the hero has to back and tie the horse to a specific spot. Once done, the hunter should be spoken to.