Suddenly, just above that silent, hallowed little area, a tall gray thing appeared, then disappeared as suddenly.

Peter trembled, yet gazed in fascination. He was fearful of he knew not what. Yet he could not withdraw his eyes from that spot. Had someone--some thing from that little graveyard come to his window and gone back again to its musty rest? Was it--could it be--?

Hardly had he the chance to think and conjure up some harrowing fear, when the dusky column appeared again, then disappeared, then appeared again. Then darkness.

Whatever put it into Peter Piper's head he never know, but quick like those very flashes occurred to him the very words that he had been saying over and over to himself but a few minutes before--saying over and committing to memory. "Three dots or flashes--S, three dots or flashes--S, three dots or flashes--"

Again it arose, that ghostly apparition, and filled the dark sky above the little graveyard. This time it remained for one, two, three, four seconds.

Peter's hand trembled now from a new kind of excitement, as he groped behind him for his one poor scout possession, the handbook. Then he reached for the lamp, but the night wind blew it out just as the tall thing came again, and stayed for several seconds.

Peter groped for the little box of safety matches which always lay near the lamp. These were the chief ornaments of his little room, the lamp and the safety matches. He held a match close over page two hundred and eighty-four while he divided his gaze between this and the next lingering visitation of that strange, long, shadowy thing over the graveyard. He struck match after match, as each blew out. Yes, that was what three short flashes meant--S. And one long flash meant T.

Suppose--suppose there should be three long appearances now? That would be O. Were these signs, expressed in ghostly strangeness, just the figments of Peter's excited imagination? Just the Morse Code haunting him and coloring his fancy? He put his finger on the black symbol on the page and waited.

--Two--three--then a pause.

S--T--O