Then he stood stock still.

The carriage was empty.

Clara was beside him in an instant, and though her face fell, she exclaimed:

"Shut the door and stop the quarrel. I must speak to Patterson."

Everything had happened so quickly that the two drivers were still on their respective boxes, making remarks to each other, when Paul stopped upon the wheel beside Patterson and said:

"Mike, drive up to the curb just in front of us. Get down, Patterson. We've something to say to you."

Patterson looked down in surprise, glanced at Clara, shook his head and gathered up the reins for a fresh start.

Paul sprang from the wheel and caught the horses by the bits before they had taken a step.

Mike was carrying out instructions and was then just abreast of him.