Chapter

 1 XVIII| forced a passage through this tunnel. It still lined the walls
 2 XIX  |       pointed out the Eastern tunnel, and we were soon all three
 3 XIX  |    rocks we were passing: the tunnel, instead of tending lower,
 4 XIX  |     when he chose the eastern tunnel? or was he determined to
 5 XX   |    lining. At one moment, the tunnel becoming very narrow, I
 6 XXI  |      if we follow the western tunnel.”~I shook my head incredulously.~“
 7 XXII |   noise. It was dark down the tunnel, but I seemed to see the
 8 XXIII|       on the left side of the tunnel, at three feet from the
 9 XXIII|         my uncle replied.~The tunnel was filling with steam,
10 XXIV |   started afresh. The granite tunnel winding from side to side,
11 XXIV |    used to this idea; for the tunnel, now running straight, now
12 XXVI |      Iceland.~On that day the tunnel went down a gentle slope.
13 XXVII|     my way by the form of the tunnel, by the projections of certain
14 XXXIX|  appeared the mouth of a dark tunnel.~There, upon a granite slab,
15 XL   |       darting down the gloomy tunnel when the Professor stopped
16 XL   |       alone; the mouth of the tunnel was not twenty yards from
17 XLI  | proceeded to the mouth of the tunnel. I opened my lantern. I
18 XLII |    the Professor “We are in a tunnel not four-and-twenty feet