• The Case of the Vanishing Boy
• Escape to Witch Mountain
• The Sword of Aradel
• Flight to the Lonesome Place
• The Forgotten Door
• The Magic Meadow
• Rivets and Sprockets
• Bolts
• The Preposterous Adventures of Swimmer
• The Strange White Doves
• Mystery of the Sassafras Chair
• The Golden Enemy
• Sprockets
• The Incredible Tide