Hildegarde Withers in The Riddle of the Blueblood Murders

The Cases of Hildegarde Withers

The Puzzle of the Silver Persian (The Hildegarde Withers Mysteries)

Murder on the Blackboard (The Hildegarde Withers Mysteries)

The Puzzle of the Red Stallion (The Hildegarde Withers Mysteries)

The Penguin Pool Murder (The Hildegarde Withers Mysteries)

The Green Ace (The Hildegarde Withers Mysteries)

The Puzzle of the Blue Banderilla (The Hildegarde Withers Mysteries)

The Puzzle of the Pepper Tree (The Hildegarde Withers Mysteries)

Hildegarde Withers Makes the Scene (The Hildegarde Withers Mysteries)