But, at the moment when expectation was at its height, and the clang of arms appeared about to resound throughout Western Asia, suddenly a disposition for peace manifested itself. Both Corbulo and Ummidius sent embassies to Volagases, exhorting him to make concessions, and apparently giving him to understand that something less was required of him than the restoration of Armenia to the Romans. Volagases listened favorably to the overtures, and agreed to put into the hands of the Roman commanders the most distinguished members of the royal family as hostages. At the same time he withdrew his troops from Armenia; which the Romans, however, did not occupy, and which continued, as it would seem, to be governed by Tiridates. The motive of the Parthian king in acting as he did is obvious. A revolt against his authority had broken out in Parthia, headed by his son, Vardanes; and, until this internal trouble should be suppressed, he could not engage with advantage in a foreign war. [PLATE III. Fig. 1.] The reasons which actuated the Roman generals are far more obscure. It is difficult to understand their omission to press upon Volagases in his difficulties, or their readiness to accept the persons of a few hostages, however high their rank, as an equivalent for the Roman claim to a province. Perhaps the jealousy which subsequently showed itself in regard to the custody of the hostages may have previously existed between the two commanders, and they may have each consented to a peace disadvantageous to Rome through fear of the other’s obtaining the chief laurels if war were entered on. [Illustration: PLATE 3.]