Said figure would soon find that a black dragon was hanging off the side of the boat, not paying attention to the newcomer. It would be presumed that the undead being would not be just walking directly onto the dragon due to common sense.

Listen: (1d20+32)[37], but it would automatically pass.

It wouldn't bother attacking the zombie - it'd simply make a full attack on the ship, tearing it several new, less useful holes.

[roll]1d20+ 33[/roll] Bite (2d8+9)[15]
(1d20+33)[36] Claws (2d6+4)[8]
(1d20+33)[34] Claws (2d6+4)[14]
(1d20+32)[52] Wings (1d8+4)[11]
(1d20+32)[49] Wings (1d8+4)[7]
(1d20+32)[39] Tail Slap (2d6+13)[16]

The dwarf could/would make its own way up. Forget chasing. If it died it could be an un-tasty undead. A shame, but oh well.

The Kraken would keep fleeing. It seemed the Dominate spell had worn off, or it was just smart enough to run while it could. Or maybe it was unrelated.