Philip leaves to install Alexandros, Olympias' brother, as the new king of Epirus, placing the loyal Antipatros as regent of Macedon. Alexander receives his new tutor, Aristotle, who sets up a school for Alexander and the sons of Philip's generals at Mieza. Among the comrades are Hephaestion, who is now accepted as Alexander's "shadow" by everyone, Ptolemy, Harpalos, Philotas, and Kassandros, whom Alexander does not like, but he must be included because he is the heir of the loyal regent Antipatros. At one point, they watch a play about Achilles and Patroclus, which further inspires the bond between Alexander and Hephaestion.