this individual was , as he said , 'going home , ' it did not appear whence or whither , and had occasion to pass through paul street between four and five a.m. something or other caught his eye at number 20 ; he said , absurdly enough , that the house had the most unpleasant physiognomy he had ever observed , but , at any rate , he glanced down the area and was a good deal astonished to see a man lying on the stones , his limbs all huddled together , and his face turned up .