Caliburn's Fight : (Sam Reilly Book 34) cover

Caliburn's Fight : (Sam Reilly Book 34)

Sam Reilly • Book 34

by Christopher Cartwright

4.48 Goodreads
(409 ratings)

Why You'll Love This

A viral video of a color-shifting dog sets off a race against forces who want what's inside Sam Reilly's own pet — and the science behind it is genuinely unsettling.

  • Great if you want: biotech thriller concepts wrapped in fast, pulpy adventure
  • The experience: lean and kinetic — 183 pages that don't waste a single one
  • The writing: Cartwright keeps the premise wild but the stakes grounded and personal
  • Skip if: you're new to the series — 34 books of backstory matters here

About This Book

A viral video of a golden retriever shifting its coat to match the patterns beneath its paws sounds like an internet curiosity — until Sam Reilly recognizes exactly what he's looking at. His own dog, Caliburn, carries the same impossible trait. What follows is a race to understand the origins of an engineered chimera built from classified military science and ancient legend, before the wrong people get there first. The stakes are personal this time, tangled up in loyalty, identity, and the unsettling question of what it means to be alive when the boundaries between species have already been crossed.

At thirty-four books in, Christopher Cartwright keeps the Sam Reilly series moving with a pace that makes 183 pages feel both swift and satisfying. This installment earns its place in the series by doing something the best shorter thrillers do well — stripping the story down to its essentials and letting tension do the heavy lifting. The blend of cutting-edge bioengineering with mythology gives the narrative an unusual texture, and Cartwright's clean, propulsive prose never lets the concept overshadow the human (and canine) heart of the story.