Special Investigations Unit books in order

The Special Investigations Unit series by Toby Neighbors begins with Colossus, a thriller about a specialized law enforcement team.

Reading order

# Title Published Author Buy on Amazon
1 Colossus 2025 Toby Neighbors Buy

The Special Investigations Unit series launches with Colossus (2025), one of Toby Neighbors’ newest projects. The series focuses on a specialized team that handles cases requiring capabilities beyond standard investigation.

Colossus, with its title suggesting something massive in scale, hints at the kind of oversized threat that would require a special unit to address. The series may expand as Neighbors continues to develop this new corner of his fiction.

Frequently Asked Questions

How many books are in the Special Investigations Unit series?

There are one books in the Special Investigations Unit series, published in 2025.

What is the first book in the Special Investigations Unit series?

The first book in the Special Investigations Unit series is Colossus, published in 2025.

Is the Special Investigations Unit a new series?

Yes, Colossus (2025) is the first book in this series, making it one of Neighbors’ newest projects. The ‘special investigations’ framing suggests a team handling cases that go beyond normal law enforcement.

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