Stolen Wishes - Three Wishes Historical Fantasy, #2.5

Lady Salome MacDonald can't remember her past. Not her home. Not her family. Not how she met her husband. All the people around her tell her the memory loss is a result of the illness that's also wasting away her body. And she believes them.right up until she forgets to take her medicine and feels better, not worse. Suddenly, her mind is sharper than it's been in months and the pain is easier to bear. Now, to stay alive, she must trick the people who've been tricking her in order to find out what she's really been taking all these months-and who is trying to kill her. Except that the more she learns, the more she realizes that nothing is as it at first seems...