How old was miles tuck when he drank the water in Tuck Everlasting?

In "Tuck Everlasting," Miles Tuck was 22 years old when he drank the water from the spring that granted him immortality. This event occurred 87 years before the main events of the story, making him effectively 109 years old during the narrative. The water's effect prevented him from aging, allowing him to remain physically 22 forever.