Miss Diana Marburg, also known as "The Oracle of Maddox Street", is a palmist and female occult detective created by the writers L. T. Meade and Robert Eustace.
Diana Marburg first appeared in the New York edition of Pearson's Magazine in February 1902, in a story entitled 'The Dead Hand'.
Two further stories were published, 'Finger Tips' (August 1902) and 'Sir Penn Caryll's Engagement' (December 1902).
The author Scott Dickerson has written three further adventures of Miss Marburg, narrated by her brother Rupert, along with versions of the originals, though with changed titles, published in his The Oracular Miss Marburg: Paranormal powers, woman detective--Victorian London!
One of the new stories features the scientist Sir William Crookes and the bogus medium Florence Cook, both historical characters, and another features Arthur Conan Doyle and Harry Houdini.