You awake in a dark room, the floor and walls made of cool stone brick. Cool moonlight drifts in through a barred window, and two doors stand before you. The left door has a hefty padlock on the front. A cold draft can be felt coming from the left door. In the center of the room, there stands a wooden table, upon which sits a potion with a blue, swirling liquid inside, a shortsword, a crowbar, and 10 feet of rope. What do you do?