Nice one. You have slain the evil The Leg.
You have earned the title: Leg Slayer. No one will refer to you as that during the game, because it’s too hard to figure out how to make that work. But you’ll know you’re the Leg Slayer and that’s what matters. You can write it next to your name on your character sheet if you feel like it. Go on, you may as well.
There are no blood stained pockets to rifle through, because the corpse is just a leg. But maybe there’s some loot lying around the room?
You have a mooch around The Leg’s lair, and find something interesting under a pile of sacks of veruca salt. It’s a treasure chest! You attempt to lift the lid, but it’s locked.

You can use a small ornate key to open it, if you have one. Or you can test your luck to try and pick the lock. If you don’t want to bother with the chest, you can leave it alone and continue onwards.