When Slate’s Evan Chung was a kid, he was obsessed with a mysterious advertisement that ran for decades in the scouting magazine Boys’ Life. Under the enticing headline “You Can Float on Air,” the ad assured Evan—and generations of scouts—that a personal hovercraft could be theirs for just a few bucks. 

In this episode, the adult version of Evan journeys halfway across the country to wield power tools, summon his latent scouting skills, and conscript his father into a quest three decades in the making. 

Will Evan float on air? Scout’s honor: You’ll just have to listen. 

This episode was written by Evan Chung, who produced this episode with Decoder Ring’s Willa Paskin and Katie Shepherd. It was edited by Willa Paskin and Joel Meyer. Derek John is Slate’s executive producer of narrative podcasts. Merritt Jacob is our senior technical director.

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