The Gypsy Queen — Anne Cleeland

The war was over, but Captain Geordie Venables was not leaving Spain just yet-not until he discovered the truth behind his commanding officer's death. Colonel Merryfield didn't deserve the cloud that was hanging over his good name, and Geordie has finally unearthed a promising lead-a gypsy troop, traveling by stealth along the River Tagus. With any luck, he can bribe them for some answers, and unravel the web of deception that seems to have led to the Colonel's death. It looked to be no easy task, though; he was fast running out of money, and everyone kept stealing his horse. . .