Alien Agenda books in order

The Alien Agenda series by Toby Neighbors is a 2025 science fiction trilogy about humanity confronting an extraterrestrial threat.

Reading order

# Title Published Author Buy on Amazon
1 Foray 2025 Toby Neighbors Buy
2 Conspire 2025 Toby Neighbors Buy
3 Siege 2025 Toby Neighbors Buy

The Alien Agenda series is a 2025 trilogy that follows the progression of an alien threat from first encounter to full siege. The three titles – Foray, Conspire, Siege – outline an escalation from scouting and conspiracy to open warfare.

This is one of Neighbors’ most recent projects, and the tight three-book structure gives it a focused narrative arc compared to his longer-running series. The alien invasion concept is a classic science fiction premise that Neighbors approaches through his military fiction lens.

Frequently Asked Questions

How many books are in the Alien Agenda series?

There are three books in the Alien Agenda series, published in 2025.

What is the first book in the Alien Agenda series?

The first book in the Alien Agenda series is Foray, published in 2025.

What is the Alien Agenda series about?

The trilogy follows humanity facing an alien incursion through three phases: Foray (initial contact), Conspire (deepening conflict), and Siege (full-scale confrontation). All three books were published in 2025.

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