What Happened at Midnight? (Hardy Boys, Book 10)
Publisher: Grosset & Dunlap
Published: April 1, 1975
Language: eng
Number of pages: 175
ISBN-13: 9780448189109
First sentence: "WHAT an assignment! And from our own Dad!" Joe Hardy grinned at his brother Frank as the two boys slipped into ripple soled shoes and put on dark jackets.