Books About Undercover Investigations

The Best Undercover Investigations Books for Kids

By the Bookroo Editors

Looking for excellent children's books about undercover investigations? This collection brings together Bookroo's highest-rated and most useful picks in one place.

Start with our editorial favorites, then browse recommendations organized by reading stage to find the right book for your reader.

The Shortlist

Our 2 Favorite Books About Undercover Investigations

House Arrest
Sale price
$901
Chapter Book · 2008

House Arrest

By Franklin W. Dixon · The Hardy Boys: Undercover Brothers series

Undercover brothers race to stop a killer on a reality show.

160 pages· 30,923 words
4.1 Goodreads · 333 ratings
$9.48Save 5%
Paperback
Summary: Frank and Joe Hardy, undercover agents, infiltrate the Deprivation House reality show. With a suspect caught, danger still lurks as mysterious accidents continue. Can they unmask the true threat before it's too late?
The Sinister Signpost
Sale price
$958
Chapter Book · Ages 8–12 · 1936

The Sinister Signpost

By Franklin W. Dixon · Book #15 in the The Hardy Boys series

Mysterious signposts vanish as car crashes and thefts escalate. Can they solve it?

175 pages· 16,064 words· Est. 2 hour read
3.8 Goodreads · 3,277 ratings
$9.99Save 4%
Hardcover
Summary: Frank and Joe Hardy face a baffling case: drivers crash after seeing ominous signposts that disappear without a trace. As they dig deeper, they uncover a plot involving a stolen experimental motor and a kidnapped racehorse. With danger lurking at every turn, can the young detectives unravel the mystery before it's too late?
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