To mark that miraculous sequel, the sea turned a red without equal.

Thus no other course would do but to name it for its hue.”

“An artistic explanation, Captain Nemo,” I replied, “but I’m unable to rest content with it. So I’ll ask you for your own personal views.”

“Here they come. To my thinking, Professor Aronnax, this ‘Red Sea’ designation must be regarded as a translation of the Hebrew word ‘Edrom,’ and if the ancients gave it that name, it was because of the unique color of its waters.”

“Until now, however, I’ve seen only clear waves, without any unique hue.”

“Surely, but as we move ahead to the far end of this gulf, you’ll note its odd appearance. I recall seeing the bay of El Tur completely red, like a lake of blood.”

“And you attribute this color to the presence of microscopic algae?”

“Yes. It’s a purplish, mucilaginous substance produced by those tiny buds known by the name trichodesmia, 40,000 of which are needed to occupy the space of one square millimeter. Perhaps you’ll encounter them when we reach El Tur.”

“Hence, Captain Nemo, this isn’t the first time you’ve gone through the Red Sea aboard the Nautilus?”

“No, sir.”