Drink We Deep (1937) by Arthur Leo Zagat

Beneath the timeless rocks of the Helderbergs-slumbering below Lake Wanooka's unfathomed waters-lies the seed of earth conflict. For there lives the strange and troubled race of other worldlings, waiting, always waiting, for the hour of deliverance. . . . And on the earth's surface, one man feels in his blood an irresistible summons that calls him to their side

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