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.
Engels
The Red Thumb Mark
The Blue Scarab : Dr Thorndyke's Casebook
Las misteriosas aventuras del Dr. Thorndyke : Novelas de misterio
The Singing Bone : Forensic Detective Stories
Helen Vardon's Confession : A Thorndyke Case Told by the Accused
The Singing Bone
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 Eye Of Osiris
The Red Thumbmark
The Mystery Of 31 New Inn