New York: Holt, Rinehart & Winston, 1968, stated 1st printing; pictorial library binding; 165 pp. Juvenile hardback ex-lib.
In Wourio's third mystery, two children and their cousin catch crooks after a rambling chase across Spain.
CONDITION: Very Good in Very Good jacket; ex-lib some marks; pages yellowing, bottom page corners bumped, still straight and clean, unclipped 3.59. Item #18761