Their rescue by the English tug was entirely probable; the capture of the enemy U-33 by the tug's crew was not beyond the range of possibility; and their adventures during the perilous cruise which the treachery and deceit of Benson extended until they found themselves in the waters of the far South Pacific with depleted stores and poisoned water-casks, while bordering upon the fantastic, appeared logical enough as narrated, event by event, in the manuscript.

Caprona has always been considered a more or less mythical land, though it is vouched for by an eminent navigator of the eighteenth century; but Bowen's narrative made it seem very real, however many miles of trackless ocean lay between us and it. Yes, the narrative had us guessing. We were agreed that it was most improbable; but neither of us could say that anything which it contained was beyond the range of possibility. The weird flora and fauna of Caspak were as possible under the thick, warm atmospheric conditions of the super-heated crater as they were in the Mesozoic era under almost exactly similar conditions, which were then probably world-wide. The assistant secretary had heard of Caproni and his discoveries, but admitted that he never had taken much stock in the one nor the other. We were agreed that the one statement most difficult of explanation was that which reported the entire absence of human young among the various tribes which Tyler had had intercourse. This was the one irreconcilable statement of the manuscript. A world of adults! It was impossible.

We speculated upon the probable fate of Bradley and his party of English sailors. Tyler had found the graves of two of them; how many more might have perished! And Miss La Rue—could a young girl long have survived the horrors of Caspak after having been separated from all of her own kind? The assistant secretary wondered if Nobs still was with her, and then we both smiled at this tacit acceptance of the truth of the whole uncanny tale: