"The Meadow-Brook Girls in the Hills; Or, The Missing Pilot of the White Mountains" is a book in the Meadow-Brook Girls series written by Janet Aldridge. The series follows the adventures of a group of young girls, the Meadow-Brook Girls, as they embark on various escapades and solve mysteries together.In this particular installment, the Meadow-Brook Girls find themselves in the hills and mountains, where they encounter a mystery involving a missing pilot. As they navigate the rugged terrain of the White Mountains, they work together to uncover clues, solve puzzles, and ultimately unravel the mystery of the missing pilot.Janet Aldridge's Meadow-Brook Girls series is aimed at young readers and often emphasizes themes of friendship, teamwork, and problem-solving. The series was popular during its time for its wholesome and adventurous storytelling, appealing to young audiences who enjoyed tales of camaraderie and adventure.