ARGUMENT OF THE TWENTY-FIRST BOOK.
Achilles having separated the Trojans, and driven one part of them to the city and the other into the Scamander, takes twelve young men alive, his intended victims to the manes of Patroclus. The river overflowing his banks with purpose to overwhelm him, is opposed by Vulcan, and gladly relinquishes the attempt. The battle of the gods ensues. Apollo, in the form of Agenor, decoys Achilles from the town, which in the mean time the Trojans enter and shut the gates against him.