Operation Doomsday
By: Dayle Courtney ; illustrated by John Ham.
Contributors: Ham, John, ill.
Series: Thorne twins adventure books ;; 5
Publisher: Standard Pub.
Published: 1981
Place of publication: Cincinnati, Ohio
Language: eng
Number of pages: 191
Subjects: Mystery and detective stories.; Christian life -- Fiction.; Twins -- Fiction.
Description: Lost while skiing in the Colorado Rockies, the Thorne twins need their Christian faith to uncover a plot against the United States nuclear defense system.