The blue-stone mystery.
By: Illustrated by James Russell.
Publisher: Abelard-Schuman
Published: 1963
Place of publication: London; New York
Language: eng
Number of pages: 142
Table of contents: title: 1 Welcome to the Double O
pagenum: 11; title: 2 Mr Crowe's Story
pagenum: 23; title: 3 A New Friend
pagenum: 37; title: 4 A New Enemy
pagenum: 49; title: 5 Puzzles and Plans
pagenum: 63; title: 6 A Discovery
pagenum: 75; title: 7 Prisoners
pagenum: 85; title: 8 Karen Follows a Sign
pagenum: 99; title: 9 Outwitted
pagenum: 113; title: 10 Lost and Found
pagenum: 123; title: 11 Explanations and Surprises
pagenum: 133