מסתרי מפתח המוות
Series: Sifre mistorin -- 100
Publisher: M. Mizraḥi
Published: 1971
Place of publication: Tel Aviv
Language: heb
Number of pages: 194
Subjects: Murder; Investigation; Fiction
Other titles: Mistere mafteaḥ ha-maṿet
Work titles: Clue of the silver key