However, Philip, now 60 years of age, died before the Bastarnae could arrive. The Bastarnae host was still "en route" through Thrace, where it became embroiled in hostilities with the locals, who had not provided them with sufficient food at affordable prices as they marched through. Probably in the vicinity of Philippopolis (modern Plovdiv, Bulgaria), the Bastarnae broke out of their marching columns and pillaged the land far and wide. The terrified local Thracians took refuge with their families and animal herds on the slopes of "Mons Donuca" (Mount Musala), the highest mountain in Thrace. A large force of Bastarnae chased them up the mountain, but were driven back and scattered by a massive hailstorm. Then the Thracians ambushed them, turning their descent into a panic-stricken rout. Back at their wagon fort in the plain, around half of the demoralised Bastarnae decided to return home, leaving c. 30,000 to press on to Macedonia.