The inroads of this little band, numbering at first only seventy-four persons, but rapidly swelling by concourse from the surrounding country, soon became so troublesome to the inhabitants of the rich region of Campania, that these, after having vainly attempted themselves to repel them, sought help against them from Rome. A division of 3000 men hurriedly collected appeared under the leadership of Clodius Glaber, and occupied the approaches to Vesuvius with the view of starving out the slaves. But the brigands in spite of their small number and their defective armament had the boldness to scramble down steep declivities and to fall upon the Roman posts; and when the wretched militia saw the little band of desperadoes unexpectedly assail them, they took to their heels and fled on all sides. This first success procured for the robbers arms and increased accessions to their ranks. Although even now a great portion of them carried nothing but pointed clubs, the new and stronger division of the militia-- two legions under the praetor Publius Varinius--which advanced from Rome into Campania, found them encamped almost like a regular army in the plain. Varinius had a difficult position. His militia, compelled to bivouac opposite the enemy, were severely weakened by the damp autumn weather and the diseases which it engendered; and, worse than the epidemics, cowardice and insubordination thinned the ranks. At the very outset one of his divisions broke up entirely, so that the fugitives did not fall back on the main corps, but went straight home. Thereupon, when the order was given to advance against the enemy's entrenchments and attack them, the greater portion of the troops refused to comply with it. Nevertheless Varinius set out with those who kept their ground against the robber-band; but it was no longer to be found where he sought it. It had broken up in the deepest silence and had turned to the south towards Picentia (Vicenza near Amain), where Varinius overtook it indeed, but could not prevent it from retiring over the Silarus into the interior of Lucania, the chosen land of shepherds and robbers. Varinius followed thither, and there at length the despised enemy arrayed themselves for battle. All the circumstances under which the combat took place were to the disadvantage of the Romans: the soldiers, vehemently as they had demanded battle a little before, fought ill; Varinius was completely vanquished; his horse and the insignia of his official dignity fell with the Roman camp itself into the enemy's hand. The south-Italian slaves, especially the brave half-savage herdsmen, flocked in crowds to the banner of the deliverers who had so unexpectedly appeared; according to the most moderate estimates the number of armed insurgents rose to 40,000 men. Campania, just evacuated, was speedily reoccupied, and the Roman corps which was left behind there under Gaius Thoranius, the quaestor of Varinius, was broken and destroyed.