About the author: We don't know much about Seldon Truss other than his full name was Leslie Seldon Truss, he is from the UK, and lived 1892-1990. He also wrote as George Selmark. His writing style about the savvy adventurer type reminds me of Leslie Charteris. He has one other title in the Mystery League series: The Hunterstone Outrage.
- Mr. Penn of Pentonville*, a Saint**-like adventurer
- Garnett, butler to Mr. Penn
- Elizabeth Wild, a.k.a. Elizabeth Parsons, suspected of attempted murder
- Barrington Wild, her father
- Dimmer, head butler at Brede Hall
- Lady Hermione Brede, widow of Brede Hall
- Mrs. Vereker-Dane, climbing the ladder of society
- Matthew Vereker-Dane, her husband, a normal guy
- Mary Vereker-Dane, their debutante daughter
- Prince Rudautz of Estuania, a good catch (?) for Mary Vereker-Dane
- Basil Gorman, shady attorney #1
- Charles Latchmer, shady attorney #2
- Monsieur Paul Nicosia, owner of the Temple of Youth beauty parlor
- Detective Inspector Shane
One night Elizabeth Wild has a late encounter with attorney Basil Gorman in the study at Brede Hall, which ends with a broken window, and Gorman shot and wounded on the floor. She disappears and is immediately suspected. Mr. Penn encounters her and takes her on as his assistant, to find her father Barrington Wild, who has been kidnapped.
Elizabeth had been trying to negotiate the return of an embezzlement confession, signed under duress by her father, an employee of the law firm of Latchmer and Gorman. The firm has a history of representing society debutantes who marry then die unexpectedly, with a resulting transfer of wealth.
Latchmer dies from mysterious causes. Mr. Penn discovers a system of coded newspaper advertisements being used between the firm and society households. Elizabeth, under the name Elizabeth Parsons, is placed as a maid to spy on the Vereker-Dane household; and promptly finds herself in peril. The Temple of Youth beauty parlor is more than it appears.
* Pentonville Prison
** The Saint, a.k.a. Simon Templar, of the Leslie Charteris novels