Tell tale heart

Simile:

“So I opened it --you cannot imagine how stealthily, stealthily --until, at length a simple dim ray, like the thread of the spider, shot from out the crevice and fell full upon the vulture eye.”

"It increased my fury as the beating of a drum stimulates the soldier into courage."

Metaphor

"He was stone dead. His eye resembled that of a vultures eye."