Yolara took from her girdle something that looked like a small pencil, pressed it and shot a thin stream of light for all the world like an electric flash, upon its hasp.

The lid flew open.

Out of it she drew three flat, oval crystals, faint rose in hue.

She handed one to O'Keefe and one to me.
"Look!" she commanded, placing the third before her own eyes.

I peered through the stone and instantly there leaped into sight, out of thin air--six grinning dwarfs! Each was covered from top of head to soles of feet in a web so tenuous that through it their bodies were plain.