Mr. Tredgold, who was too used to his friend's mental processes to quarrel with them, assented.
"He's coming round to smoke a pipe with me to-morrow night," he said, briskly, as he turned to cross the road to his office. "You come too, and we'll get it out of him. If Chalk can keep a secret he has altered, that's all I can say."
His estimate of Mr. Chalk proved correct. With Mr. Tredgold acting as cross-examining counsel and Mr. Stobell enacting the part of a partial and overbearing judge, Mr. Chalk, after a display of fortitude which surprised himself almost as much as it irritated his friends, parted with his news and sat smiling with gratification at their growing excitement.
"Half a million, and he won't go for it?" ejaculated Mr. Tredgold. "The man must be mad."
"No; he passed his word and he won't break it," said Mr. Chalk. "The captain's word is his bond, and I honour him for it. I can quite understand it."
Mr. Tredgold shrugged his shoulders and glanced at Mr. Stobell, that gentleman, after due deliberation, gave an assenting nod.
"He can't get at it, that's the long and short of it," said Mr. Tredgold, after a pause. "He had to leave it behind when he was rescued, or else risk losing it by telling the men who rescued him about it, and he's had no opportunity since. It wants money to take a ship out there and get it, and he doesn't see his way quite clear. He'll have it fast enough when he gets a chance. If not, why did he make that map?"
Mr. Chalk shook his head, and remarked mysteriously that the captain had his reasons. Mr. Tredgold relapsed into silence, and for some time the only sound audible came from a briar-pipe which Mr. Stobell ought to have thrown away some years before.
"Have you given up that idea of a yachting cruise of yours, Chalk?" demanded Mr. Tredgold, turning on him suddenly.