The Mystery of the Sealed Art Gallery

The Mystery of the Laughing Death

The Mystery of the Talking Wire

The Mystery of the Silver Snare

The Vanishing Cracksman

The Heritage of Hamilton Cleek

The Mystery of the Amsterdam Diamonds

The Mystery of the Dover Express

The Mystery of the Fadeless Tints

The Mystery of the Glass Tubes

The Mystery of the Ladder of Light

The Mystery of the Lost Stradivarius

The Mystery of the Octagonal Room