"It's wonderful," he cried. "Why, we could signal—"

"Wait a minute," she interrupted brightly. "This isn't your discovery, not a bit of it. It's all mine and I'm jealous of it. And I've thought it all out. Now, if you'll come inside we'll have a cup of coffee and a sandwich which you'll eat politely just as though you were hungry."

"I'm starved!"

"And I'll tell you my invention. First, though, while I serve luncheon you can be the hired man and bring in all your wood. I'm perfectly willing to be cook but I refuse to get my wood any longer."

When he had completed his task he came to her. She had poured two tin cups of coffee, sweetened and cooled with condensed milk, and upon a clean piece of bark served her sandwiches. And they sat on the floor upon heaped-up pine needles and she told him her plan.

There was an old spy glass at the Bar L-M, wasn't there? All right. Then his first duty when he got back home would be to spend a patient time locating with it her cedar and the cliffs back of it. To-morrow morning, early, she would be here—no, no. Not in the cave nor even upon the ledge outside; they must guard so carefully against their secret being lost; but upon the big boulder at the top of the cliff. She would have her field glasses. He could step out upon the front porch at the Bar L-M, and if any of the boys were about he could pretend to be looking idly at a herd of cows somewhere, or at a hawk or at anything but at her. They could see each other quite distinctly.

"If it wasn't so far we could talk on our fingers!"

"Do I have to remind you again that this is my discovery, my invention?"

She tried so charmingly to be severe, and failed so delightfully that he assured her he was going to put down his coffee cup and come over and kiss her. But when she threatened that if he misbehaved she would not stir out of the house again for a week he sighed and finished his coffee and listened obediently.

"Suppose," she went on, "that you stood very still on your porch, both hands holding your spyglass? That would mean one thing. Suppose you leaned lazily against the door post? That would mean another. If you came down the steps, if you took off your hat, if you put on your hat, if you sat down on the bench, if you turned your back to me, if you lifted both arms above your head as if you were yawning and stretching, if you stooped to pick up something, if you stooped once, walked five steps and stooped again—don't you see that even with your whole outfit looking on we can say 'Good morning,' and 'Good night,' and anything else we choose to say? Isn't it splendid?"