Ten Little Wizards is a novel by Michael Kurland featuring Randall Garrett's alternate history detective Lord Darcy.
It was first published in paperback by Ace Books in March 1988; a trade paperback edition and ebook edition were issued by the Borgo Press imprint of Wildside Press in 2011.
He must uncover the murderer and ascertain whether the whole business is a ploy to kill the king himself.
To complicate matters Darcy must investigate during the preparations for the investiture of Gwiliam, Duke of Lancaster (King John IV's younger son), as Prince of Gaul.
To add international tension, the Crown Prince of Poland, His Majesty the King of Courland (Latvia), will attend the ceremony.