Hildegarde Withers Mystery Collection

Adventures of school teacher Hildegarde Wither, an amateur sleuth.

1. The Penguin Pool Murder (1932)
2. Murder on the Blackboard (1934)
3. Murder on a Honeymoon (1935)
4. Murder on a Bridle Path (1936)
5. The Plot Thickens (1936)
6. Forty Naughty Girls (1937)