nearly nine o'clock
`` But we must first wait here till the last moment to ascertain if he makes any signal to show that his plan is altered , or that he has discovered he is watched . '' He turned , and in his preoccupation laid his hand for an instant upon Demorest 's shoulder with the absent familiarity of old days . Unconscious as the action was , it thrilled them both -- from its very unconsciousness -- and impelled them to throw themselves into the new alliance with such feverish and excited activity in order to preclude any dangerous alien reflection , that when they rose a few moments later and cautiously left the garden arm-in-arm through the outer gates , no one would have believed they had ever been estranged , least of all the clever woman who had separated them . It was nearly nine o'clock when the two friends , accompanied by the sheriff of the county , left San Buenaventura turnpike and turned into a thicket of alders to wait the coming of the carriage they were to henceforth follow cautiously and unseen in a parallel trail to the main road . The moon had risen , and with it the long withheld wind that now swept over the distant stretch of gleaming road and partly veiled it at times with flying dust unchecked by any dew from the clear cold sky . Demorest shivered even with his ready hand on his revolver . Suddenly the sheriff uttered an exclamation of disgust .