“I suppose,” said Tempest jauntily, who was evidently recovering his presence of mind, “he thought it was a lucifer match.”

“You’ll laugh on the wrong side of your face, young gentleman,” said the policeman wrathfully; “this here matter will have to be gone into. There’s been a party injured, and it’ll be a matter for the magistrate. You’ll have to come along with me.”

“I tell you,” said Tempest, becoming grave once more, “I’ve had no more to do with it than you have.”

“And yet,” said Mr Jarman, speaking for the first time, “the explosion took place immediately after you were there, and when it was impossible for any one else to be there.”

“I say I know nothing at all about it,” said Tempest shortly, “and I don’t care what you think.”

“Come, Tempest,” said Dr England, “no good will be gained by losing temper. It is very necessary to get to the bottom of this business, especially as some one has been injured. It seems almost impossible the explosion could have happened by accident; at the same time, knowing what I do of you, I do not myself believe that you are the boy who would commit an outrage of this sort. As the policeman intends to report the affair to the magistrate, you had better go with him and let him investigate the matter. Don’t do yourself injustice by losing your temper. Mr Jarman, your attendance will probably be necessary; and Jones had better go too, although so far he has not thrown very much light on the matter. Constable, if you will take my compliments to Captain Rymer and ask him when he can see us—”

“Beg pardon, sir,” said the constable, evidently sore about the blazer, “the young gent must come along with me now. That’s my duty, and I can’t take no instructions contrary.”

“Very well,” said the doctor stiffly; “we will go to Captain Rymer at once.”

“Hadn’t you better handcuff me?” said Tempest, who appeared to be seized with a wild desire to exasperate the man of the law.

The policeman glared as if he was disposed to take him at his word.