Ropes were fastened to the guns, and with forty men to each gun these were quickly run up the hill and placed in position in the captured bastions.
So quickly was this done that in less than an hour from the abandonment of San Bertram by the Spanish the guns had opened fire upon Montjuich.
While the troops worked these five guns and the three captured in Southwell's first attack Jack Stilwell was sent off on horseback at full speed with an order for the landing of the heavy guns and mortars from the fleet.

The news of the attack on Montjuich and the retreat of the Spanish column spread with rapidity through the country, and swarms of armed peasants flocked in.

These the earl dispersed among the ravines and groves round the city, so as to prevent any parties from coining out to ascertain what was going on round Montjuich, and to mask the movements of the besiegers.
Velasco appeared paralyzed by the energy and daring of his opponent, and although he had in hand a force equal if not superior to that which Peterborough could dispose of, he allowed two days to pass without attempting to relieve Montjuich.

In those two days wonders had been performed by the soldiers and sailors, who toiled unweariedly in dragging the heavy guns from the landing place to the hill of Montjuich.
The light cannon of the besiegers had had but little effect upon the massive walls of the fortress, and the Prince Caraccioli held out for two days even against the heavier metal of the mortars and siege guns that were quickly brought to bear upon him.
On the 17th, however, Colonel Southwell by a well aimed shot brought the siege to a close.

He noticed that a small chapel within the fort appeared to be specially guarded by the besieged, and ordered a Dutch sergeant of artillery, who was working a heavy mortar, to try to drop a shell upon it.