Title: Aventuras de Sherlock Holmes (Adventure of the Blue Carbuncle / Adventure of the Engineer's Thumb / Boscombe Valley Mystery)
Description: Contains:
[Adventure of the Blue Carbuncle](https://openlibrary.org/works/OL1518317W/Adventure_of_the_Blue_Carbuncle)
[Adventure of the Engineer's Thumb](https://openlibrary.org/works/OL1518318W/Adventure_of_the_Engineer's_Thumb)
[Boscombe Valley Mystery](https://openlibrary.org/works/OL18495288W/The_Boscombe_Valley_Mystery)