Both Uses

glimmer
in
The Adventures of Tom Sawyer
(Auto-generated)

Two or three glimmering lights showed where it lay, peacefully sleeping, beyond the vague vast sweep of star-gemmed water, unconscious of the tremendous event that was happening.†
Chpt 13 *
Some said that now and then, in the cave, a far-away speck of light would glimmer, and then a glorious shout would burst forth and a score of men go trooping down the echoing aisle—and then a sickening disappointment always followed; the children were not there; it was only a searcher's light.†
Chpt 30

Definitions:

(1) (glimmer as in: a glimmer of hope)
a slight indication of something -- such as hope or interest
(2) (glimmer as in: glimmering lights)
a dim, wavering, or reflected light
(3) (meaning too rare to warrant focus)