PLOTTING CONUNDRUM

My hero is locked in a dungeon behind a heavy wood door with a rusty lock and a cross bar on the other side. Food is delivered through a hinged door in the bottom. His prison mate is a dwarf who has the ability to turn inanimate objects into gold. How do they get out? The dwarf has hidden a chisel, and the hero still has his electronic gizmo. If he breaks the lock with the chisel, there's still the wood bar to lift on the other side.

Options:

Hero uses his gizmo to levitate the bar.

A secret...