At that moment a man strolled past them, a big stout fellow, showily dressed in a check suit; and he gravely took off his hat to Dr. Porhoët. The doctor smiled and returned the salute.
“Who is your fat friend?” asked Arthur.
“That is a compatriot of yours. His name is Oliver Haddo.”
“Art-student?” inquired Arthur, with the scornful tone he used when referring to those whose walk in life was not so practical as his own.
“Not exactly. I met him a little while ago by chance. When I was getting together the material for my little book on the old alchemists I read a great deal at the library of the Arsenal, which, you may have heard, is singularly rich in all works dealing with the occult sciences.”
Burdon’s face assumed an expression of amused disdain. He could not understand why Dr. Porhoët occupied his leisure with studies so profitless. He had read his book, recently published, on the more famous of the alchemists; and, though forced to admire the profound knowledge upon which it was based, he could not forgive the waste of time which his friend might have expended more usefully on topics of pressing moment.
“Not many people study in that library,” pursued the doctor, “and I soon knew by sight those who were frequently there. I saw this gentleman every day. He was immersed in strange old books when I arrived early in the morning, and he was reading them still when I left, exhausted. Sometimes it happened that he had the volumes I asked for, and
