The Onondaga knew that he would watch until the storm came in full flood, and nothing would escape his keen eyes and ears.

Dagaeoga was a worthy pupil of Willet, known to the Hodenosaunee as the Great Bear, a man of surpassing skill.
Tayoga also heard the rushing of the rain, far off, coming, perhaps, from Andiatarocte, and presently he saw the flashes of lightning, every one a vast red blaze to his feverish eyes.

It was only by the light of these saber strokes across the sky that he could now see Robert, as the dark had come, soon to be followed by floods of rain.

Then he closed his eyes, and calling incessantly for sleep, refused to open them again.
Sleep came by and by, though it was Tarenyawagon, the sender of dreams, who presided over it, because as he slept, and his fever grew higher, visions, many and fantastic, flitted through his disordered brain.
Robert watched until long after the rain had been pouring in sheets, and it was pitchy dark in the cave.

Then he felt of Tayoga's forehead and his pulse, and observed the fever, though without alarm.