The jealousy of his royal master was aroused, and he had to pay the penalty of over-much success with his life.

Parthia was thus left without a general of approved merit, for Sillaces, the second in command during the war with Crassus, had in no way distinguished himself through the campaign.

This condition of things may account for the feebleness of the efforts made in B.C.52 to retaliate on the Romans the damage done by their invasion.

A few weak bands only passed the Euphrates, and began the work of plunder and ravage, in which they were speedily disturbed by Cassius, who easily drove them back over the river.

The next year, however, a more determined attempt was made.