Then it was true, what he had heard from the hired girl at Slow Down Ranch: that old Mazarine was to receive six thousand dollars in cash from Orlando Guise by the hands of Burlingame! Only that very morning, at the moment of his own release from jail, his brother Bill McMahon had told him of the conversation overheard between Orlando and his mother, by Milly Gorst, the hired girl.
He turned and watched Mazarine go down the street and enter a barber's shop.

If Mazarine was going to have his hair cut, he would be in the barber's shop for some time.

With intense reflection in his eyes, McMahon entered Burlingame's office.

He had come to settle up accounts for a clever piece of court-room work on the part of Burlingame.

It was very well worth paying for liberally.
When he entered the office, Burlingame was not there.