"Clever. But is the erupting volcano not eventually put out by the sea? When I locked myself in an oven I made enough meltwater to drown myself in - which didn't work either - and when I crushed myself under a rock I made rather a large pile of ice. I have not yet found a limit to how much water I can make."

He shrugs, and finds whatever he's looking for. There is a click and a slight draft. He carries Isabella a short way and then, presumably, closes whatever door he just opened, before setting off again along the new tunnel.