01032cam a2200301 4500 62124352 TxAuBib 20011205120000.0 011205s1976||||||||||||||||||||||||eng|u 76015222 /AC 9780807506448 0807506443 TxAuBib Warner, Gertrude Chandler. Benny uncovers a mystery / Gertrude Chandler Warner ; illustrated by David Cunningham. Chicago : A. Whitman, 1976. 128 p. : ill. ; 22 cm. Boxcar children, The Boxcar children mysteries. "Pilot books.". Two brothers take summer jobs at a department store where a series of peculiar events brings them under suspicion. 20011205. Department stores Fiction. Mystery and detective stories. Cunningham, David. The Boxcar children. Boxcar children mysteries.