Again mounted upon the bicycle, the doctor and the young woman returned to the chase. They were soon brought to a second stop by Appleton's departure from the 'bus at Girard Avenue.

“Where can he be going to now?” queried Amy.

“He's going to take that east-bound Girard Avenue car.”

“So he is. What can he mean to do in that part of town?”

They turned down Girard Avenue. The car was half a block in advance of them.

“You're energetic enough in this pursuit,” Amy shouted back to the doctor as the machine fled over the stones, “even if you don't believe in it.”

“Energetic in your service, now and always.”

She made no answer.

This time her reflections were abruptly checked—as his had been on Broad Street—by the cry of the other.

“See! He's getting off at the Girard Avenue Theatre.”