Murdle Puzzle Series 2 Books Collection Set By G. T. Karber (Murdle The School of Mystery & Murdle The Case of the Seven Skulls)

Titles in the set :- 
1)Murdle: The School of Mystery:
Publisher ‏ : ‎ Souvenir Press
Language ‏ : ‎ English
Format    : Paperback 
ISBN-10 ‏ : ‎ 1805222082
ISBN-13 ‏ : ‎ 978-1805222088

2)Murdle: The Case of the Seven Skulls:
Publisher ‏ : ‎ Souvenir Press
Language ‏ : ‎ English
Format : Paperback 
ISBN-10 ‏ : ‎ 1805222090
ISBN-13 ‏ : ‎ 978-1805222095