The understanding that she had to go on, not simply because her friends needed her, but because if she didn't there was nothing left but a dark, bottomless gulf, waiting to suck her under forever.
Great is Bankruptcy: the great bottomless gulf into which all Falsehoods, public and private, do sink, disappearing; whither, from the first origin of them, they were all doomed.
So I place you under this geas, to betake yourself downward through the caverns till you reach, after long descent, that bottomless gulf over which the spider-god Atlach-Nacha weaves his eternal webs.
There were vultures soaring over the bottomless gulf.
It was as if there were a great, dark abyss at his feet, an echoing, bottomless gulf that swallowed everything he needed to know.
The names 'Apsu' and 'Tiamat' can be translated 'abyss', 'void' or 'bottomless gulf.
Jupiter and his satellites dropped behind, sinking, as it seemed to the wanderers, down into the bottomless gulf of Space, but still forming by far the most brilliant and splendid object in the skies.
How much good the note did, or whether it merely fell into the bottomless gulf of irremediable loss, I cannot tell.
They could see nothing, could be sure of nothing; but perforce they must go on, not knowing if the next step would plunge them into some terrific pit or bottomless gulf.
He seemed to descend into bottomless gulfs, pursued by unpitying cataracts of fire and seas of molten heat.