Read it through once

Now, when with royal Tranquo I visited this wondrous whale, and saw the skull an altar, and the artificial smoke ascending from where the real jet had issued, I marvelled that the king should regard a chapel as an object of vertù. He laughed. But more I marvelled that the priests should swear that smoky jet of his was genuine. To and fro I paced before this skeleton—brushed the vines aside—broke through the ribs—and with a ball of Arsacidean twine, wandered, eddied long amid its many winding, shaded colonnades and arbors. But soon my line was out; and following it back, I emerged from the opening where I entered. I saw no living thing within; naught was there but bones.