Τῶν δὲ στρατιωτῶν βουλὴ ἐγένετο ἵνα τοὺς δεσμώτας ἀποκτείνωσιν, μή τις ἐκκολυμβήσας διαφύγῃ.
And the soldiers' counsel was to kill the prisoners, lest any of them should swim out, and escape.
Los soldados planeaban matar a los prisioneros para que ninguno escapara nadando.