Mystery of the lost letter
By: by Helen Fuller Orton, illustrated by Robert Doremus.
Contributors: Doremus, Robert.
Publisher: Lippincott
Published: 1946
Place of publication: Philadelphia
Language: eng
Number of pages: 112
Subjects: Mystery and detective stories.
Description: Searching for a letter that has mysteriously disappeared from his neighbor's house, eleven-year-old Ken Tracy discovers a hidden staircase, a secret room, and the intruder who uses them.
Notes: "First edition."