"You may go back to your work." Young File left the room, with a scrutinizing look for the two strangers and a suspicious frown for Screw.
"Allow us to introduce ourselves," began the elder of the two strangers.
"Pardon me for a moment," interposed the doctor.

"Where is Mill ?" he added, turning to Screw.
"Doing our errands at Barkingham," answered Screw, turning paler than ever.
"We happened to meet your two men, and to ask them the way to your house," said the stranger who had just spoken.

"This man, with a caution that does him infinite credit, required to know our business before he told us.

We managed to introduce the password--'Happy-go-lucky'-- into our answer.

This of course quieted suspicion; and he, at our request, guided us here, leaving his fellow-workman, as he has just told you, to do all errands at Barkingham." While these words were being spoken, I saw Screw's eyes wandering discontentedly and amazedly round the room.