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.