The Nautilus entered the Strait of Jubal, which leads to the Gulf of Suez. I could clearly make out a high mountain crowning Ras Mohammed between the two gulfs. It was Mt. Horeb, that biblical Mt. Sinai on whose summit Moses met God face to face, that summit the mind’s eye always pictures as wreathed in lightning.

At six o’clock, sometimes afloat and sometimes submerged, the Nautilus passed well out from El Tur, which sat at the far end of a bay whose waters seemed to be dyed red, as Captain Nemo had already mentioned. Then night fell in the midst of a heavy silence occasionally broken by the calls of pelicans and nocturnal birds, by the sound of surf chafing against rocks, or by the distant moan of a steamer churning the waves of the gulf with noisy blades.

From eight to nine o’clock, the Nautilus stayed a few meters beneath the waters. According to my calculations, we had to be quite close to Suez. Through the panels in the lounge, I spotted rocky bottoms brightly lit by our electric rays. It seemed to me that the strait was getting narrower and narrower.

At 9:15 when our boat returned to the surface, I climbed onto the platform. I was quite impatient to clear Captain Nemo’s tunnel, couldn’t sit still, and wanted to breathe the fresh night air.

Soon, in the shadows, I spotted a pale signal light glimmering a mile away, half discolored by mist.

“A floating lighthouse,” said someone next to me.

I turned and discovered the captain.

“That’s the floating signal light of Suez,” he went on. “It won’t be long before we reach the entrance to the tunnel.”

“It can’t be very easy to enter it.”

“No, sir. Accordingly, I’m in the habit of staying in the pilothouse and directing maneuvers myself. And now if you’ll kindly go below, Professor Aronnax, the Nautilus is about to sink beneath the waves, and it will only return to the surface after we’ve cleared the Arabian Tunnel.”