Jarl, letting go one breath, settled himself back to slumber.

Far up overhead, at the darkening-in of night, the besiegers saw the eyes of
the castle flash red for an instant, and shut again; then they heard the
castle-rock bray out like a great trumpet, and they trembled, crying, "That is
old Jarl's warhorn; he is awake out of slumber!"

They had reason enough to fear; for suddenly upon their ships-of-war there
crashed, as though out of the bowels of the earth, a black wind and sandblast;
and coming, it took the reefed sails and rigging, and snapped the masts and
broke every vessel from its moorings, and drove all to wreck and ruin against
the great mole that had bccn built to shelter them.

And away inland, beyond the palisades and under the entrenched camp of the
besiegers, the ground pitched and rocked, so that every tent fell grovelling;
and whenever the ground gaped, captains and men-at-arms were swallowed down in
detachments.

Hardly had the call of old Jarl's war-horn ceased, before the Constable
commanded the castle gates to be thrown open, and out he came leading a gaunt
and hungry band of Jarl-folk warriors; for over in the enemy's camp they had
scent of a hot supper which must be cooked and eaten before dawn. And in a
little while, when the cooking was at its height, young Duke Jarl stuck his
red head out over the battlements, and laughed.

So this has told how old Duke Jarl once turned and talked in his sleep; but to
tell of the real awakening of old Jarl would be quite another story.