# Arthur Sinclair — The Wrong Letter character guide

> Arthur Sinclair in The Wrong Letter by Walter S. Masterman.

**Role:** major

**Also known as:** Superintendent Sinclair, Even Sinclair, Sinclair, Mr. Sinclair

**First appearance:** 0001-the-wrong-letter

## Who they are

Superintendent investigating the case, a key authority figure.

## Links

- HTML: https://www.betterreads.online/discover/the_wrong_letter_se/characters/arthur_sinclair
- Book: https://www.betterreads.online/discover/the_wrong_letter_se
- All characters: https://www.betterreads.online/discover/the_wrong_letter_se/characters