"It will hold a far heavier man than you, if you are thinking of making the descent," said Colwyn laughingly. "It's a case of unity is strength. The tendrils of the climbing plants are so twisted together that they are as tough as ropes."

"Thank you. What time will you reach here when you return?"

"Probably not before dusk, but certainly by then. In the meantime, of course, you will not breathe a word of this to anybody."

"I am not likely to do that. I shall keep a close watch on the pit till I see you again."

"That's right. Good day."

"Good day, sir."

It still wanted a few minutes to seven when Colwyn returned to the inn. The front door was as he had left it, closed, but unlocked. The house was silent: nobody was yet stirring. He locked the door after him, and proceeded to his room, pleased to think he had not been seen going or coming. His first act on reaching his room was to lock the door and count the money in the pocket-book. The money was all in single Treasury notes, with one five-pound note. The case contained nothing else except a faded newspaper clipping on Fossil Sponges. Colwyn replaced the notes, and put the case in an inside breast pocket. He next performed the best kind of toilet the primitive resources of the inn permitted, and occupied himself for an hour or so in completing his notes of his investigations.

While he was breakfasting he saw the innkeeper passing the half-open door, and he called him into the room and told him to let him have his bill without delay, as he was returning to Durrington that morning. The innkeeper made no comment on hearing his guest's intention, and Charles brought in the bill a little later. Colwyn, as he paid it, casually asked Charles if he happened to know the time of the morning trains from Heathfield.

"There's one to Durrington at eleven o'clock, sir," said the waiter, consulting a greasy time-table. "There's one at 9:30, but it's a good long walk to the station, and you could not catch it because there's no way of getting there except by walking, as you know, sir."

"The eleven o'clock train will suit me," said Colwyn, consulting his watch.