top of page
A British author of techno-espionage and conspiracy thrillers exploring the intersection of faith, technology, and power.

Aleister Casey

  • Instagram
  • Facebook
  • TikTok
Book cover of Hummingbird, a techno-espionage thriller novel by Aleister Casey exploring faith, power, and technology.

NEW RELEASE OCTOBER 2025

Hummingbird.

The race to save civilisation has begun.

 

​When a radiant figure of impossible power appears in a Welsh church, the Vatican dispatches investigator Marcus Pestata to uncover the truth.

 

Miracle or hoax, angel or deception, what he discovers will shatter everything he believes.

As whispers of the apparition spread, powerful forces take notice.

 

In the Vatican, a centuries-old secret order stirs as ruthless MI6 operatives and the world's most secretive organisation, the Factory, all race to seize control of the being known only as Sky. To some, she is salvation. To others, the ultimate weapon.

Caught between faith and conspiracy, Marcus is thrust into a deadly conflict where ancient prophecy collides with modern espionage.

 

Every step brings him closer to a terrifying revelation: Sky is not what anyone believes, and the fate of humanity may rest on whether Marcus chooses to protect it… or destroy it.

From Aleister Casey, the writer of Everlodge and Black Sun. Hummingbird is perfect for fans of Dan Brown, James Rollins, and Gregg Hurwitz. It is a pulse-pounding thriller of faith, power, and the battle for humanity’s soul.

bottom of page