"At last I found it easily. After ranging the wildest solitudes, we
struck it in a sheltered valley near the warm west coast. Curious,
isn't it?"

"But didn't that banish the unrest and leave you satisfied?"

The man looked at her with a flicker of grim amusement in his eyes.

"As I explained, it can't be banished. There's always a richer claim
somewhere that you haven't found. Our prospectors dream of it as the
Mother Lode, and some spend half their lives in search of it; it was
called El Dorado three hundred years ago. After all, the idea's a
deeper thing than a miner's fantasy: in one shape or another it's
inherent in optimistic human nature. Are you sure the microbe hasn't
bitten you and Mopsy?"

He was too shrewd. Turning from him, she looked down at the eddying mist.
For several years she had chafed at her surroundings and the restraints
they laid upon her, with a restless longing for something wider and
better: a freer, sunnier atmosphere where her nature could expand. At
times she fancied there was only one sun which could warm it to a perfect
growth, but that sun had not risen and scarcely seemed likely to do so.

Vane broke the silence deprecatingly.

"Now that you're rested, we'd better get on. I'm sorry I've kept
you so long."

Though caution was still necessary, the rest of the descent was easier,
and after a while they reached a winding dale. They followed it