Aristotle and the Secrets of Life — Margaret Anne Doody

The great philosopher and his student face pirates, political intrigue, and more in this dark, suspenseful mystery set in ancient Athens.
 
Tensions between the Athenians and the Makedonians -- whose leader, Alexander the Great, is one of Aristotle's former students -- draw the philosopher across the Aegean Sea, accompanied by the devoted Stephanos. Both will have much to learn about survival as they find themselves beset by pirates, uncovering conspiracy, and facing the horrors of war. It will be up to Aristotle to try to shed light on the darkness they are about to encounter -- in this novel in the historical series praised as “unusually authentic” (Kirkus Reviews) and “eminently enjoyable” (Colin Dexter, author of the Inspector Morse Mysteries).
 
Also published as Aristotle and the Mystery of Life