Jack of Hearts by Candace C. Bowen
Price: $4.99 USD. 83760 words.
Published by Seven Realms Publishing on March 21, 2013. .
During the height of the Whitechapel Murders, Katherine Kelly teams up with Constable Edward Stanhope to search for her older sister, Mary. They soon discover the closer they come to finding Mary, the closer they come to finding Jack the Ripper.