The Arabian Pearl

Description for THE ARABIAN PEARL by Marian J A Jackson:

Fresh from her heady success at retrieving the Punjat’s ruby for the Prince of Wales, Miss Abigail Patience Danforth and her entourage are speeding toward San Francisco in a private railroad car when their journey is interrupted by train robbers. They murder her new friend, and steal her beloved horse, Crosspatches, along with Marshal Bill Tilghman’s foundation sire—an Arabian, priceless as a monarch’s pearl.

Far from the familiar boulevards of London and New York where she had schooled herself in the infant science of detection, Miss Danforth disdains the famous lawman’s old-fashioned, slow methods of tracking fugitives across the vast wilderness that was then the Oklahoma Territory and creates her own – her only clue, the killer’s love of chocolate.

This is #2 in Miss Danforth series