Carol Townend 
Chained to the Barbarian [EPUB ebook] 

Bound in chains, enslaved barbarian Sir William Bradfer stands proud in the Constantinople slave market. As a warrior, he's trained in the art of survival.Lady-in-waiting Anna of Heraklea is betrothed to be married—against her will. Catching sight of the magnificent William, she finds a rebellious half plan forming in her mind. Anna can offer this captured knight freedom in return for his hand in marriage!