75 15 later latter
All during the trip Billings had steadfastly evaded questions as to how we were to enter Caspak after we had found Caprona. Bowen Tyler's manuscript had made it perfectly evident to all that the subterranean outlet of the Caspakian River was the only means of ingress or egress to the crater world beyond the impregnable cliffs. Tyler's party had been able to navigate this channel because their craft had been a submarine; but the Toreador could as easily have flown over the cliffs as sailed under them. Jimmy Hollis and Colin Short whiled away many an hour inventing schemes for surmounting the obstacle presented by the barrier cliffs, and making ridiculous wagers as to which one Tom Billings had in mind; but immediately we were all assured that we had raised Caprona, Billings called us together.