Alliteration

a figure of speech in which the same sound appears at the beginning of two or more words. Alliterative words are consecutive or close to each other in the text.

Example From Text

Thirty or forty huskies ran to the spot and surrounded the combatants in an intent and silent circle.

Explanation

The author repeats the "S" sound when he writes "silent circle" to emphasize how quietly the dogs watch as Curly is attacked. Note that alliteration is not the repetition of the same letter but the repetition of the same sound.