# Sleuth — The Secret of the Old Mill character guide

> Sleuth in The Secret of the Old Mill by Franklin W. Dixon.

**Role:** minor

**Also known as:** the Sleuth

**First appearance:** 0009-x-the-new-boat

## Who they are

The Hardy boys' motorboat, used in their water-based investigations.

## Relationships

### [Frank Hardy](https://www.betterreads.dev/discover/the_secret_of_the_old_mill_se/characters/frank_hardy)

_friendship_

Frank's dog and loyal companion, often aiding in tracking and clues.

### [Frank Hardy](https://www.betterreads.dev/discover/the_secret_of_the_old_mill_se/characters/frank_hardy)

_friendship_

Frank's dog and loyal companion, often aiding in tracking and clues.

## In the story

### [The New Boat](https://www.betterreads.dev/discover/the_secret_of_the_old_mill_se/chapters/x-the-new-boat)

The new motorboat, named Sleuth, is described as a graceful, powerful craft that wins a race against Tony's boat.

### [A Man in a Hurry](https://www.betterreads.dev/discover/the_secret_of_the_old_mill_se/chapters/xi-a-man-in-a-hurry)

The Hardy boys' new motorboat, admired by Barmet villagers and used to transport the stranger.

### [XII: Seasick](https://www.betterreads.dev/discover/the_secret_of_the_old_mill_se/chapters/xii-seasick)

The Hardy boys' motorboat, which is rocked by waves and later lost in fog.

## Links

- HTML: https://www.betterreads.dev/discover/the_secret_of_the_old_mill_se/characters/sleuth
- Book: https://www.betterreads.dev/discover/the_secret_of_the_old_mill_se
- All characters: https://www.betterreads.dev/discover/the_secret_of_the_old_mill_se/characters