For some days the Turks observed, to their astonishment, that the road they were constructing across the ditch was diminishing instead of increasing in bulk, and at length it became so evident that the garrison were in some way removing the materials, that the pasha determined to deliver the assault before the heap was so far diminished as to become impassable. His former defeats had, however, taught him that success could not be always calculated upon, however good its prospect might appear; and although he had no real hope that the defenders would yield, he sent a formal summons for them to do so. This was refused with disdain, and preparations were at once made for the assault.