Librarian's Selection

4 Books Found

Based on your description:

"a boy who is like a detective and trying to prevent some diamonds or jewels of the queen of england from getting stolen the book had an orange cover, it was like a young boy, and the book is franchise"
August 22, 2026

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Likely answer

Jack Stalwart and the Caper of the Crown Jewels

The book is The Caper of the Crown Jewels by Elizabeth Singer Hunt, the fourth Secret Agent Jack Stalwart adventure. Jack travels to London to recover the Queen's Crown Jewels after they vanish from the Tower of London.

Confirmed match: The Caper of the Crown Jewels by Elizabeth Singer Hunt

The Diamond Mystery #1 (The Whodunit Detective Agency)
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The Diamond Mystery #1 (The Whodunit Detective Agency)

Martin Widmark

2014
1 edition
Mac undercover
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Mac undercover

Mac Barnett

2018
7 editions
No Cover
Search Title

The Secret Agent Jack Stalwart: The Theft of the King's Crown

Elizabeth Singer Hunt

Source temporarily unavailable
The Caper of the Crown Jewels
View on Open Library

The Caper of the Crown Jewels

Elizabeth Singer Hunt

2007
1 edition
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