Cover image for What happened at midnight
Title:
What happened at midnight
Personal Author EPSB:
Summary:
When their detective father asks them to play burglar in order to protect a client's valuable invention from thieves, the Hardy boys find themselves involved in a large and dangerous conspiracy.
Year Published:
1992,

1967
Physical Description:
173 p. : illus. ; 20 cm.
Grade Interest level:
3-6
Program Information:
Gr. 6+
Curriculum Objective:
ISBN:
9780448089102
Publisher:
New York : Grosset & Dunlap, 1992, c1967.