Abash- cause to feel embarrassed, disconcerted, or ashamed.

Abyss- a deep or seemingly bottomless chasm.

Accursed- under a curse.

Aphotic- lacking light; especially not reached by sunlight;

Archipelago- group of islands

Calcareous- containing calcium carbonate; chalky.

Desolate- (of a place) deserted of people and in a state of bleak and dismal emptiness.

Diadem- a jeweled crown or headband worn as a symbol of sovereignty.

Elusive- difficult to find, catch, or achieve.

Petrel- a seabird related to the shearwaters, typically flying far from land.

Phantom- a ghost

Pounce- (of an animal or bird of prey) spring or swoop suddenly so as to catch prey.

Sublime- of such excellence, grandeur, or beauty as to inspire great admiration or awe.

Tarn- a small mountain lake

Thatch- a roof covering of straw, reeds, palm leaves, or a similar material.