Jack Sparrow: The Timekeeper

Pirates of the Caribbean: Jack Sparrow: The Timekeeper is the eighth in a series of young reader books written by Rob Kidd dealing with the early life of Jack Sparrow. It was published on July 31, 2007.

Publisher's Summary
Time is about to go all funny for Jack Sparrow and his faithful crew. Fitzwilliam P. Dalton III's beloved timepiece has always been valuable to him. But it has suddenly become valuable to a lot more people—including some of the Barnacle's crew's worst enemies! It turns out that Fitz's timepiece is not only a clock, but an unbelievably powerful tool that can stop time itself. It's up to Jack and his crew to find a way to keep the timepiece out of the hands of their dangerous adversaries.

Summary
Jack's got something Davy Jones wants... nope, it's not his soul. It's a very special pocket watch with unique properties. This watch has the power to affect time itself! Jack accidentally pressed down on the watch's crown, freezing time. He ties Fitzwilliam to a totem pole and rows to shore of a nearby island. Reactivating time, Jack and Fitz walked through the jungle and fall into pits, only to be rescued by Aztecs. They throw Jack and Fitz to a volcano and seal the way out. A sabertooth tiger suddenly leaps out at Jack as he freezes time once again. Finding a way out, he carries Fitz to the exit and unfreezes time. Suddenly the volcano erupts and Jack and his friend jump from tree to tree, finding a palace. Inside, Jack and Fitz suddenly fall through the floor, revealing they had been there before, on their first adventure. Finding Jack and Fitzwilliam, the natives take them to a throne room, where they find Stone Eyed Sam. Jack and Fitz hold the watch and freeze time, escaping Sam's power with the Sword of Cortes. Fitz sees pterosuars and they realize the watch is doing more than freeze time!