Penrose is an eccentric old man in possession of some dazzling gems, which he won't insure. When Dr Thorndyke is alerted to a burglary at his house, a scrap of paper is found with the word 'lobster' on it along with two Latin words. Meanwhile, Penrose has fled in panic after a car accident. The police are clearly mystified, but Thorndyke in his indelible style is on track; hunting down a fugitive, testing a theory, and getting to the bottom of a tantalising, complex mystery.
Englisch
Sherlock Holmes - Die geheimen Fälle des Meisterdetektivs, Folge 72: Der Aluminiumdolch (unabridged)
Las misteriosas aventuras del Dr. Thorndyke : Novelas de misterio
The Singing Bone : Forensic Detective Stories
The Red Thumb Mark
Sherlock Holmes - Die geheimen Fälle des Meisterdetektivs, Folge 73: Die trügerische Spur (ungekürzt)
Helen Vardon's Confession : A Thorndyke Case Told by the Accused
The Singing Bone
Sherlock Holmes - Die geheimen Fälle des Meisterdetektivs, Box 20: Folgen 68, 69
El Libro de Casos del Dr. Thorndyke : El rival científico de Sherlock Holmes: 7 casos resueltos con microscopio y deducción
The blue scarab
The Adventures of Dr Thorndyke
The Red Thumbmark