Attach to a hero. Limit 1 per hero.

Action: Exhaust A Burglar Indeed! to choose a card with a guarded attachment. Deal 1 damage to that card if it is an enemy, or place 1 progress on that card if it is a location (deal 2 damage or place 2 progress instead if attached hero is Bilbo Baggins).

“he lifted it, shut his eyes, and put it in his deepest pocket. “Now I am a burglar indeed!” thought he.
–Bilbo Baggins, The Hobbit