Philopoemen (14.6-14.7)

Then, observing that they were not fleeing towards the city, but scattering themselves hither and thither through the region (which was woody, entirely surrounded by hills, and impracticable for cavalry owing to water-courses and ravines), he checked his pursuit and encamped while it was still light. But judging that the enemy after their flight would steal back to the city by ones and twos under cover of the night, he placed large numbers of his Achaeans armed with swords in ambush among the water-courses and hills about the city.

Here very many of the followers of Nabis met their death; for since they did not make their return in a body, but as the chances of flight disposed them severally, they fell into the hands of their enemies and were caught like birds about the city.