Curse of the Jackalmen

THIS IS GONNA BE EDITED/REWRITTEN ONCE I FINISH BECAUSE THE FIRST HALF DOZEN CHAPTERS ARE TERRIBLE.
IT GETS BETTER I SWEAR

Hemite is the slave of a Roman/Egyptian family living in Egypt. Her job is to serve and guard fifteen year old Synos. A relatively simple career, made complicated by his Egyptian mother, Kyripatra, and his momma's boy brother, Ptolis. Bought.for Synos's twelfth birthday.at the age of ten by Dentrilus, his father, a wealthy Roman merchant, she and Synos have grown close over the years. But recently strange, monstrous creatures have endangered their safety. When attacked, the monsters disappear into smoke. The mystery follows them, even when abroad in Greece and Rome.