"Not now, thank you. I'd rather wait for the others. I promised to have everything ready for them when they came back."
"I see. You're 'Polly, put the kettle on,' to-day, and 'Sukey, take it off again,' also, as they appear to have 'all run away.' No more, thanks. One cup is as much as is good for me. Why, in the name of all that's mysterious, who has been writing these?"
The colonel jumped up and strode to the other end of the hut, having suddenly caught sight of the quaint letters which Isobel had drawn upon the wall.
"I have," replied Isobel simply.
"Then, my dear Miss Robinson Crusoe, may I ask how you came to be acquainted with runic characters?"
"I don't know what they are," said Isobel. "It's very queer writing, isn't it? I was only copying it for fun."
"Where did you copy it from?"
"It's on a stone at the top of the headland."
"This headland?"
"Yes, just above here, but a little farther on."