Passage 7.18.13
τὸ δὲ ἀπὸ τούτου πῦρ ἐνιᾶσιν ἐς τὰ ξύλα. ἐνταῦθά που καὶ ἄρκτον καὶ ἄλλο τι ἐθεασάμην τῶν ζῴων, τὰ μὲν ὑπὸ τὴν πρώτην ὁρμὴν τοῦ πυρὸς βιαζόμενα ἐς τὸ ἐκτός, τὰ δὲ καὶ ἐκφεύγοντα ὑπὸ ἰσχύος· ταῦτα οἱ ἐμβαλόντες ἐπανάγουσιν αὖθις ἐς τὴν πυράν. τρωθῆναι δὲ οὐδένα ὑπὸ τῶν θηρίων μνημονεύουσιν.
After this they set fire to the wood. Here, I recall, I saw a bear and some other animals; some of them, compelled by the initial force of the fire, rushed outward, whereas others even escaped through their strength. Those responsible for the proceedings caught these animals and threw them back again into the flames. They report, however, that no one was wounded by the beasts.