Serpent in the Thorns (Crispin Guest Medieval Mystery‪)‬

The disgraced knight turned inquiry agent searches for a missing relic in this Macavity Award-finalist mystery set in fourteenth century London.

Former knight Crispin Guest is now known in the streets of medieval London as the Tracker—an investigator who can find anything and anyone. What begins as a straightforward case of murder turns complicated when Crispin realizes that the victim was an important courier in possession of a holy artifact—an object so valuable that its absence could start a war between France and England.

Surrounded by possible suspects, Guest will have to use his wiles to navigate both the exclusive halls of King Richard's court, and the hardscrabble streets of fourteenth-century London. In a world full of old friends, mysterious strangers, and dangerous enemies—including the treasonous mastermind who caused Crispin's fall from grace—Crispin will have to uncover a deadly conspiracy to protect his country, save himself, and perhaps even restore his good name.