A wall in the deepest tunnels
In a room high in the deepest tunnels there's a detonator's plunger, and a wall that seems to block nothing at all. Pushing the plunger does nothing.
Nudge 1Where to look
Plungers set things off. Something explosive is needed, placed by the wall.
Nudge 2A stronger push
It's tucked away in the hull of Blackheart's ship.
What you needOther problems to solve first
Solve these first (each opens its own page, no answers on the way):
Show the solutionThe whole answer, with a video
Ride the east lift up to the plunger room, drop the sticks of dynamite by the wall on its left, then stand at the plunger and press B. The blast opens the wall into the chamber beyond: the only way into the dragon's den above it (The dragon's den).