Issue 7 picks up right where Issue 6 left off as Captain Jack, Susan, Lando, the kids, and Sherman tour the Smithsonian National Air & Space Museum. But the visit takes a strange turn when the airplanes start whispering for help — and even Sherman can hear them. Convinced something is haunting the museum, Jack and Sherman sneak back inside after closing time, encountering odd clues, a dancing night guard, and a hidden passage that leads them to a surprising discovery. Packed with humor, mystery, and aviation fun, Mosquito Madness ends with a real-world aviation lesson that readers can take with them long after the adventure is over.