But chiefly watching wore them out, endured now for four days and three nights.
When, the water covering every place, not a dry spot could be found where they might stretch their weary bodies, they laid themselves down upon their baggage, thrown in heaps into the waters.

Piles of beasts, which lay every where through the whole route, afforded a necessary bed for temporary repose to those seeking any place which was not under water.

Hannibal himself, riding on the only remaining elephant, to be the higher from the water, contracted a disorder in his eyes, at first from the unwholesomeness of the vernal air, which is attended with transitions from heat to cold; and at length from watching, nocturnal damps, the marshy atmosphere disordering his head, and because he had neither opportunity nor leisure for remedies, loses one of them.
3.

Many men and cattle having been lost thus wretchedly, when at length he had emerged from the marshes, he pitched his camp as soon as he could on dry ground.

And here he received information, through the scouts sent in advance, that the Roman army was round the walls of Arretium.