One Arabian Night by Suzie Quint
There are a thousand and one reasons why there can be no future 
for a palace eunuch and a harem-bound concubine, but as Murad knows all 
too well, the heart wants what the heart wants, even when their 
forbidden love would mean death to them both if they were discovered. He
 can't even love her the way a man should love a woman. 
Or can he? 
After all, Istanbul is full of many strange and wonderful magics.