The minister held back. He was not a brave man, and that black hole in the side of the moor conjured up horrors.
"Take my hand, and let yourself down. There's water, but not more than a foot," said Pendoggat.
He pushed Eli forward, then caught his collar, and lowered him like a sack. The minister shuddered when he felt the icy water round his legs and the clammy ferns closing about his head. Pendoggat followed. They were in a narrow channel leading towards a low cave. Frogs splashed in front of them. Small streams trickled down a hundred tiny clefts.
"This is a very disagreeable situation, Mr. Pendoggat," said Eli meekly.
"Come on," said the other gruffly. "I'll show you something to open your eyes. Step low."
They splashed on, bent under the arch of the cave, and entered the womb of the moor. Hundreds of feet of solid granite roofed them in. They were out of the wind and moonlight. Pendoggat guided the minister in front of him, keeping him close to the wall of rock to avoid the deep water in the centre. About twenty paces from the entry was a shaft cut at right angles. They went along it until they had to stoop again.
"Be'old, Mr. Pendoggat!" cried Eli, with amazed admiration. "Be'old the colours! I have never seen anything so beautiful in my life. What is it? Jewels, Mr. Pendoggat? You don't say they are jewels?"
"Pretty, ain't they? More than pretty too. Now you know what I've brought you for," said Pendoggat, as he turned up the light to increase the splendour of the wall.
It was a pretty sight for a child, or any other simple creature. The side wall at the end of the shaft was streaked and veined with a brilliant purple and green pattern. These colours were caused by the iron in the rocks acting upon the slate, which was there abundant. Pendoggat knew that well enough. He knew also that the sight would impress the minister. He lifted the lantern, pointed to a streak of pale blue which ran down the rock from the roof to the water, and said gruffly: "You can see for yourself. That's the stuff."
"What is it?" whispered the excited pastor.