In "the gift of the magi", the narrator, like a comfortable, old storyteller, explains and describes the fictional account of Della and Jim at Christmas time.
Step-by-step explanation:
One of the ways in which O. Henry creates suspense and tension in the story "The Gift of the Magi" is by using what many story writers, including screen writers, which is called as "ticking clock."
Another way by which suspense is created in the story by the narrator is when Della got pair of tortoise shell combs as a gift, but didn't expect to receive them as a gift and she did not know whom did she get those from. So these were two situations of suspense in the story.