"You haven't broken your word intentionally." But the captain paid no heed.

He was staring wild-eyed into vacancy and rumpling his grey hair until it stood at all angles.

His face reflected varying emotions.
"Somebody has got it," he said again.
"Whoever it is will get no good by it," said Miss Drewitt, who had had a pious upbringing.
"And if they've got the map they'll go after the island," said the captain, pursuing his train of thought.
"Perhaps they won't find it after all," said Prudence.
"Perhaps they won't," said the captain, gruffly.
He got up and paced the room restlessly.

Prudence, watching him with much sympathy, had a sudden idea.
"Edward Tredgold was in here alone this afternoon," she said, significantly.
"No, no," said the captain, warmly.

"Whoever has got it, it isn't Edward Tredgold.