It was followed by another, also without any headlight, but this second rider stopped a little distance beyond the shack and got off his machine.
Something, he knew not what, dissuaded Pee-wee from making his customary announcements and he stood in the darkness watching this second speeder who seemed to be delayed by some trouble with his machine.

The traveler was certainly too hurried and preoccupied to think of doughnuts.
Meanwhile, the first cyclist had covered perhaps fifty yards and was still going.

The little red taillight of his machine shone brightly.
Pee-wee was just wondering why these travelers used no headlights and whether the first cyclist would return to assist his friend, when he beheld something which caught and held his gaze in rapt concentration.
The little red taillight went out and on four times in quick succession.
There followed an appreciable pause, then two quick flashes.

Pee-wee watched the tiny light, spellbound.

It appeared for a couple of seconds, then flashed twice with lightning rapidity.
"Hide," Pee-wee repeated to himself and motioned with his hand for Pepsy not to move.