"Dark o' the moon! Dark o' the moon! Dark--Mother, see what I found!" Spencer broke his slow chant with a squeal, and dangled above his head the great purple starfish. Sure-footed, like a lithe brown sea animal, he darted over the slippery golden seaweed toward Catherine, who looked up from the shallow green pool over which she had been stooping. "Lemme see too!" Marian's dark head rose from behind a rock and she stumbled after her brother. Plump! she was down in the treacherous kelp, her serious face scarcely disconcerted. Marian always slipped on the seaweed. "Isn't he 'normous? He's the 'normousest yet." Spencer laid the star on the rock, bending over to straighten one of the curling arms. "I found one almost as big," declared Marian, "only pink. And pink's a nicer color. Isn't it, Muvver?" "If you like it." Catherine took Spencer's sea-chilled fingers in hers and drew them down to the under side of the ledge over the pool. "Feel that?" "What is it?" Spencer's gray eyes darkened with excitement. "Lemme feel too!" Marian sat down on the seaweed and slid along to the ledge. "Where?" Catherine guided her fingers. How like sea things those cold little hands felt! "What does it feel like?" "Kinda soft and kinda hard and----Oh, it's got a mouth!" Marian squirmed away. "Tell us, Muvver! What is it?" "Can you guess, Spen?" "May I look, Mother? I think it's--snail eggs." Catherine laughed. "Lean over and look. I'll hold you." She seized his belt, while he craned his neck over the bit of rock. "Purple, too!" He came back, flushed. "I know!" "Lemme see!" Marian plunged downward, her legs waving. "It's full of holes. What is it?" "Sponges," said Spencer, importantly. "Sponges is brown and bigger," cried Marian. "These are alive and not the same kind as your bath sponge."