He had picked a lock, had found the letter prepared by Mr. Bideawhile with its accompanying envelope, and had then already learned enough of the domestic circumstances of the Longestaffe family to feel assured that unless he could assist the expedition of this hitherto uncompleted letter by his own skill, the letter would never reach its intended destination. 
He had picked a lock, and had found the letter prepared by Mr. Bideawhile. 