Quotation from: Out of Time's Abyss

Written by: Edgar Rice Burroughs

"Shut up, you fool!" growled Brady. "If you know so much, tell
us what it was after bein' then."

Then he turned toward Bradley. "What was it, sor, do you think?"
he asked.

Bradley shook his head. "I don't know," he said. "It looked like
a winged human being clothed in a flowing white robe. Its face
was more human than otherwise. That is the way it looked to me;
but what it really was I can't even guess, for such a creature is
as far beyond my experience or knowledge as it is beyond yours.
All that I am sure of is that whatever else it may have been, it
was quite material--it was no ghost; rather just another of the
strange forms of life which we have met here and with which we
should be accustomed by this time."