What Happened at Midnight

Infobox Book |
name = What Happened at Midnight(volume no. 10)
orig title =
translator =


image_caption =
author = Franklin W. Dixon
cover_artist =
country = United States
language = English
series = The Hardy Boys
genre = Children's literature/Young adult literature
publisher = Grosset & Dunlap
release_date = May 1, 1931
media_type = Print (Hardback & Paperback)
pages = 173 pp
isbn = ISBN 0-448-08910-6
preceded_by = The Great Airport Mystery
followed_by = While the Clock Ticked

"What Happened at Midnight" is Volume 10 in the original The Hardy Boys book series published by Grosset & Dunlap. This book is the last of the "Original 10", generally considered to be the best examples of the Hardy Boys, and Stratemeyer Syndicate, writing.

Plot summary

Joe and Frank are asked to break into the house of a scientist and retrieve a secret invention and keep it safe from being stolen while he is away. Later, Joe is kidnapped. This event leads Frank and his friends to investigate. While investigating they see someone waving from a car and think its Joe. The mystery has begun.......

They encounter various gangsters that are trying to get the plane radio from them.Even if it envolves kidnapping Joe!