# Hardy Boys 15: the Sinister Signpost

Canonical: https://www.bookquiver.com/laura-lee-hope/hardy-boys-15-the-sinister-signpost/9780448089157

![Hardy Boys 15: the Sinister Signpost](https://quivercdn.com/covers/grosset-dunlap/laura-lee-hope/hardy-boys-15-the-sinister-signpost_978-04-4808-915-7.jpg?v=2026-06-23%2019%3A06%3A04)

- Book: [Hardy Boys 15: the Sinister Signpost](https://www.bookquiver.com/laura-lee-hope/hardy-boys-15-the-sinister-signpost) ([Hardy Boys 15: the Sinister Signpost.md](https://www.bookquiver.com/laura-lee-hope/hardy-boys-15-the-sinister-signpost.md))
- Authors: [Laura Lee Hope](https://www.bookquiver.com/laura-lee-hope)
- Publisher: grosset_dunlap
- ISBN: 978-04-4808-915-7
- Pages: 192
- Published: 1936-09-01
- Language: en_US
- Binding: Hardcover

## Description

In one of the most dangerous and intriguing cases of their careers, Frank and Joe Hardy help their father investigate a series of mysterious car accidents. Each of the drivers had seen a signpost marked...