Why--you might find--" "But why does Rags have to keep on pouring water in ?" asked Lottie.
"Oh, that's to moisten it," said Pip, "to make the work a bit easier.
Keep it up, Rags." And good little Rags ran up and down, pouring in the water that turned brown like cocoa.
"Here, shall I show you what I found yesterday ?" said Pip mysteriously, and he stuck his spade into the sand.

"Promise not to tell." They promised.
"Say, cross my heart straight dinkum." The little girls said it.
Pip took something out of his pocket, rubbed it a long time on the front of his jersey, then breathed on it and rubbed it again.
"Now turn round!" he ordered.
They turned round.
"All look the same way! Keep still! Now!" And his hand opened; he held up to the light something that flashed, that winked, that was a most lovely green.
"It's a nemeral," said Pip solemnly.
"Is it really, Pip ?" Even Isabel was impressed.
The lovely green thing seemed to dance in Pip's fingers.

Aunt Beryl had a nemeral in a ring, but it was a very small one.

This one was as big as a star and far more beautiful..