The Sign of Four Spirits Other Books in This Series

The Incident of the Book in the Nighttime The Incident of the Book in the Nighttime
The Incident of the Book in the Nighttime
2025
The Devil in the Details The Devil in the Details
The Devil in the Details
2026
Elementary, She Read Elementary, She Read
Elementary, She Read
2017
Body on Baker Street Body on Baker Street
Body on Baker Street
2017
The Cat of the Baskervilles The Cat of the Baskervilles
The Cat of the Baskervilles
2018
A Scandal in Scarlet A Scandal in Scarlet
A Scandal in Scarlet
2018
There's A Murder Afoot There's A Murder Afoot
There's A Murder Afoot
2020
A Curious Incident A Curious Incident
A Curious Incident
2021
A Three Book Problem A Three Book Problem
A Three Book Problem
2022
The Game is a Footnote The Game is a Footnote
The Game is a Footnote
2023