99. The Barbarians then, when they had departed from Delos, touched at the islands as they went, and from them received additional forces and took sons of the islanders as hostages: and when in sailing round about the islands they put in also to Carystos, seeing that the Carystians would neither give them hostages nor consent to join in an expedition against cities that were their neighbours, meaning Eretria and Athens, they began to besiege them and to ravage their land; until at last the Carystians also came over to the will of the Persians. 100. The Eretrians meanwhile being informed that the armament of the Persians was sailing to attack them, requested the Athenians to help them; and the Athenians did not refuse their support, but gave as helpers those four thousand to whom had been allotted the land of the wealthy 933