"Oh, thanks! That would be delightful," beamed Mrs. Tremayne. "The girls and I could go to-day if you can take us. My husband and Clive are out with the motor-bike, so it's a splendid opportunity."

"Let me see! The tide should be just right this afternoon," agreed Bevis cheerfully. "Mavis and Merle know the way to Gurgan Point. If they'll take you there and down the path to the cove, I'll come round in the yacht and meet you. Shall we say at three o'clock?"

"That would be exactly nice time after lunch."

"Very well, I'll be there."

Bevis went back to Grimbal's Farm chuckling to himself, though he did not betray the cause of his amusement to anybody. He hunted out a hamper and packed it with cups and saucers, a methylated spirit-lamp, and other picnic requisites. On his way to the quay he stopped at the confectioner's and bought cakes and fancy biscuits. He placed these comestibles inside the hamper, and stowed it away in the locker of The Kittiwake. At two o'clock he was out of the harbour, and was off in the direction of Gurgan Point.

Mavis and Merle and Cousin Nora, bearing baskets in which to place shells, had a pleasant walk along the cliffs, and descended the path to the trysting-place. They found Bevis waiting for them in the cove. He had moored The Kittiwake to a buoy, and now led the way over the sands to a sort of little peninsula that jutted out into the sea. Here he had beached his dinghy.

"This is the shell-bank. You'll find heaps of them here!" he said.

Undoubtedly he had brought them to the right place. There were shells in abundance, and of many different kinds, delicate pink ones, tiny cowries, twisted wentletraps, scallops, screw-shells, and some like mother-of- pearl. Mrs. Tremayne was in raptures, and went down on her knees to gather them. There was such a tempting variety that it was difficult to stop, and in the excitement of the quest the time simply fled.

"I haven't brought my watch!" declared Mrs. Tremayne once.

"Oh, it's quite early yet!" Bevis assured her. "I've lighted the spirit- lamp, and I'm going to make you some tea."