The Isaac Investigates Series

By Sam Sedgman

Science-minded friends solve globe-spanning mysteries involving vanished people, hidden treasures and daring heists.

gripping · inventive · fast-paced · mysterious

Pageticker community rating

Average 4.75, from 8 readers

What is The Isaac Investigates series by Sam Sedgman about?

Begun in 2024, Sam Sedgman’s Isaac Investigates series follows inventive, science-minded Isaac Turner and his fearless friend Hattie as they unravel standalone mysteries in remarkable locations. Isaac’s knowledge of mechanics, physics and how things work proves useful when his father disappears in the first book. The story then expands from London to Paris, Italy and beyond, involving secret maps, hidden treasure, stolen jewels and elaborate deceptions. The series should appeal to readers aged around 9–12 who enjoy fast-paced detective stories, puzzles, friendship and real-world science. Expect danger, peril, crime, disappearances and references to murder, but no graphic detail.

Genres

Adventure Mystery

About the author

Sam Sedgman is a British author who loves writing exciting mystery stories. He is best known for co-authoring the Adventures on Trains series, where young detectives solve puzzling cases while travelling the world by train. Sam enjoys inspiring children to use their curiosity and imagination to discover new adventures in books.

All the books in The Isaac Investigates series (in order)

The Clockwork Conspiracy

by Sam Sedgman

Book 1 of 3

A smashed pocket watch reveals London's famous landmarks hide a dangerous secret—can Isaac save his missing father?

The Forbidden Atlas

by Sam Sedgman

Book 2 of 3

A blackout, a fleeing boy and a stolen letter lead Isaac beneath Paris—where is his sister?

The Galileo Heist

by Sam Sedgman

Book 3 of 3

A stolen summer, a jailed grandfather and a daring eclipse heist—who’s telling the truth?

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