They plummet into another ocean and are quickly captured by a monstrous ogre and his doting wife (Peter Vaughan and Katherine Helmond), who plan to make a meal of them.
Our heroes outwit their captors easily and throw them overboard, sailing the ship into oblivion.
The ship soon strikes something solid. Unfortunately, that solid thing is the head of a giant who has just found himself a nice, new hat during his swim.
The giant emerges onto land, stepping on a fishing hut where a couple of...things are engaged in a seemingly normal domestic squabble.
With a bit of ingenuity, the gang concocts a sleeping draught from the apothecary supplies available in the galley and quickly administers it directly onto the giant's scalp.
The giant is good enough to remove his hat before he settles into a good, long nap, allowing the group to escape yet again.
Our heroes walk through a vast desert until an invisible barrier halts them in their tracks.
Randall is elated, declaring that they have finally arrived at the Fortress of Ultimate Darkness. A little spat and a well-placed hurtling skull break the barrier.