MYSTERY OF THE ABSENT NEIGHBORS.
Edition: 1st trade paperback printing.
Katonah, NY: Young Reader's Press, (1968). First edition - Twelve year old Nancy and her eleven year old brother Kevin are spending the summer in the Idaho mountains at the sheep camp of their aunt and uncle, and they become interested in a nearby mystery house which appears to have been abandoned in a hurry, yet remains well cared for. Illustrated with drawings by Ursula Koering. 191 pp plus final drawing.
Condition: Near fine in illustrated wrappers (name on title page)