"My Dear Little Rainbow-maker," it began.

"You are surely a prism your own self, for you have made a blessed bright spot in the world for me, ever since you came into it. I read your letter to papa, telling all about your birthday and the prism Uncle Darcy gave you. It cheered him up wonderfully. I was so proud of you when he said it was a fine letter, and that he'd have to engage you as a special correspondent on his paper some day.

"At first the doctors thought his sight was entirely destroyed, by the flying glass of the broken windshield, but now they are beginning to hope that one eye at least may be saved, and possibly the other. Papa is very doubtful about it himself, and gets very despondent at times. He had just been having an especially blue morning when your letter was brought in, and he said, when I read it:

"'That is a good line to live by, daughter,' and he had me get out his volume of Milton and read the whole sonnet that the line is taken from. The fact that Milton was blind when he wrote it made it specially interesting to him.

"He and mamma both need me sorely now for a little while, Baby dear, and if you can keep busy and happy without me I'll stay away a couple of weeks longer and help take him home to Kentucky, but I can't be contented to stay unless you send me a postal every day. If nothing more is on it than your name, written by your own little fingers, it will put a rainbow around my troubles and help me to be contented away from you."

Georgina spent the rest of the morning answering it. She had a feeling that she must make up for her father's neglect as a correspondent, by writing often herself. Maybe the family at Grandfather Shirley's wouldn't notice that there was never any letter with a Chinese stamp on it, addressed in a man's big hand in Barby's pile of mail, if there were others for her to smile over.

It had been four months since the last one came. Georgina had kept careful count, although she had not betrayed her interest except in the wistful way she watched Barby when the postman came. It made her throat ache to see that little shadow of disappointment creep into Barby's lovely gray eyes and then see her turn away with her lips pressed together tight for a moment before she began to hum or speak brightly about something else. No Chinese letter had come in her absence to be forwarded.

Georgina wished her father could know how very much Barby cared about hearing from him. Maybe if his attention were called to it he would write oftener. If the editor of a big newspaper like Grandfather Shirley, thought her letters were good enough to print, maybe her father might pay attention to one of them. A resolve to write to him some day began to shape itself in her mind.

She would have been surprised could she have known that already one of her epistles was on its way to him. Barby had sent him the "rainbow letter." For Barby had not drawn off silent and hurt when his letters ceased to come, as many a woman would have done.

"Away off there in the interior he has missed the mails," she told herself. "Or the messenger he trusted may have failed to post his letters, or he may be ill. I'll not judge him until I know."

After Georgina's letter came she resolutely put her forebodings and misgivings aside many a time, prompted by it to steer onward so steadily that hope must do as Uncle Darcy said, "make rainbows even of her tears."

Georgina wrote on until dinner time, telling all about the way she had spent her birthday dollar. After dinner when the sunshine had dried all traces of the previous night's rain, she persuaded Tippy that she was entirely over the effects of the gas, and perfectly able to go down street and select the picture postals with which to conduct her daily correspondence.

Richard joined her as she passed the bungalow. They made a thrilling afternoon for themselves by whispering to each other whenever any strange-looking person passed them, "S'pose that was the owner of the pouch and he was looking for us." The dread of their sin finding them out walked like a silent-footed ghost beside them all the way, making the two pairs of brown eyes steal furtive glances at each other now and then, and delicious little shivers of apprehension creep up and down their backs.

Whether it was the passing of the unseasonable weather into hot July sunshine again or whether the wild-cat liniment was responsible, no one undertook to say, but Mrs. Triplett's rheumatism left her suddenly, and at a time when she was specially glad to be rid of it. The Sewing Circle, to which she belonged, was preparing for a bazaar at the Church of the Pilgrims, and her part in it would keep her away from home most of the time for three days.

That is why Georgina had unlimited freedom for a while. She was left in Belle's charge, and Belle, still brooding over her troubles, listlessly assented to anything proposed to her. Belle had been allowed to go and come as she pleased when she was ten, and she saw no reason why Georgina was not equally capable of taking care of herself.

Hardly was Mrs. Triplett out of sight that first morning when Georgina slipped out of the back gate with a long brass-handled fire-shovel, to meet Richard out on the dunes. He brought a hoe, and in his hand was the little compass imbedded in the nut.

When all was ready, according to Georgina's instructions, he turned around three times, then facing the east tossed the compass over his shoulder, saying solemnly, "Brother, go find your brother." She stood ready to mark the spot when it should fall, but Captain Kidd was ahead of her and had the nut in his teeth before she could reach the place where it had touched the ground. So Richard took the nut away and held the agitated little terrier by the collar while Georgina went through the same ceremony.

This time Richard reached the nut before the dog, and drew a circle around the spot where it had lain. Then he began digging into the sand with the hoe so industriously that Captain Kidd was moved to frantic barking.

"Here, get to work yourself and keep quiet," ordered Richard. "Rats! You'll have Cousin James coming out to see what we're doing, first thing you know. He thinks something is the matter now, every time you bark. Rats! I say."

The magic word had its effect. After an instant of quivering eagerness the dog pounced into the hole which Richard had started, and sent the sand flying furiously around him with his active little paws. Georgina dragged the accumulating piles aside with the fire-shovel on one side, and Richard plied the hoe on the other. When the hole grew too deep for Captain Kidd to dig in longer, Richard stepped in and went deeper. But it was unsatisfactory work. The shifting sand, dry as powder at this depth, was constantly caving in and filling up the space.

They tried making new holes, to the north of the old one, then to the south, then on the remaining sides. They were still at it when the whistle at the cold-storage plant blew for noon. Georgina rubbed a sleeve across her red, perspiring face, and shook the ends of her curls up and down to cool her hot neck.

"I don't see how we can dig any more to-day," she said wearily. "The sun is blistering. I feel all scorched."

"I've had enough," confessed Richard. "But we've got to find that pouch."

After a moment's rest, leaning on the hoe-handle, he had an inspiration. "Let's get Manuel and Joseph and Rosa to help us. They'd dig all day for a nickel."

"I haven't one nickel left," said Georgina. Then she thought a moment. "But I could bring some jelly-roll. Those Fayals would dig for eats as quick as they would for money. I'll tell Belle we're going to have a sort of a picnic over here and she'll let me bring all that's left in the cake box."

Richard investigated his pockets. A solitary nickel was all he could turn out. "Two cents for each of the boys and one for Rosa," he said, but Georgina shook her head.

"Rosa would make trouble if you divided that way. She'd howl till somebody came to see what was the matter. But we could do this way. The one who gets the least money gets the most jelly-roll. We'll wait till the digging is over and then let them divide it to suit themselves."

By five o'clock that afternoon, the compass had been sent to "hunt brother" in a hundred different places, and the hollow circled by the bayberry bushes and beach plums where the pouch had been hidden filled with deep holes. Captain Kidd had responded to the repeated call of "Rats" until the magic word had lost all charm for him. Even a dog comes to understand in time when a fellow creature has "an axe to grind." Finally, he went off and lay down, merely wagging his tail in a bored way when any further effort was made to arouse his enthusiasm.

The Fayal children, working valiantly in the trenches, laid down arms at last and strolled home, their faces streaked with jelly-roll, and Georgina went wearily up the beach, dragging her fire-shovel after her. She felt that she had had enough of the dunes to last her the rest of her natural lifetime. She seemed to see piles of sand even when she looked at the water or when her eyes were shut.

"But we won't give up," she said staunchly as she parted from Richard. "We're obliged to find that pouch, so we've got to keep hope at the prow."

"Pity all this good digging has to be wasted," said Richard, looking around at the various holes. "If it had all been in one place, straight down, it would have been deep enough to strike a pirate's chest by this time. I hope they'll fill up before anybody comes this way to notice them."

"Somehow, I'm not so anxious as I was to go off 'a-piratin' so bold,'" said Georgina with a tired sigh. "I've had enough digging to last me forever and always, amen."

The Fayal children, surfeited with one afternoon of such effort, and not altogether satisfied as to the division of wages which had led to war in their midst, did not come back to the Place of the Pouch next morning, but Richard and Georgina appeared promptly, albeit with sore muscles and ebbing enthusiasm. Only stern necessity and fear of consequences kept them at their task.

Cousin James had reported that there was a fishing vessel in that morning with two enormous horse mackerel in the catch, which were to be cut up and salted at Railroad wharf. It was deliciously cool down on the wharf, with the breeze blowing off the water through the great packing shed, and the white sails scudding past the open doors like fans. With Mrs. Triplett busy with the affairs of the Bazaar, it would have been a wonderful opportunity for Georgina to have gone loitering along the pier, watching the summer people start off in motor boats or spread themselves lazily under flapping sails for a trip around the harbor.

But something of the grim spirit of their ancestors, typified by the monument looking down on them from the hill, nerved both Richard and Georgina one more time to answer to the stern call of Duty.