The large bone

Deciding that the small bone might be too fragile, you place it into your pouch and kneel down next to the bars.

With the large bone, held tightly in your hand, you reach through the bars and press the tip of the bone along the metal until you find the keyhole. Once you've found where to slide the bone into, you insert it into the lock somewhat gently, being careful not to damage the lock.

Unfortunately, the bone is too big and gets wedged into the hole. Try with all your might the bone just won’t budge, the only option left being to try and break down the bars.

Health: 100%
Tiredness: 1%
Hunger: 4%

Inventory:
Small Rat bone
Bronze key