“It is to be me,” said Lord Peter, “and that for two reasons. First, because, if (by Possibility No. 2, Hypothesis 1, Alternative A) Crimplesham is an innocent catspaw, the person who put in the advertisement is the proper person to hand over the property. Secondly, because, if we are to adopt Hypothesis 2, we must not overlook the sinister possibility that Crimplesham-X is laying a careful trap to rid himself of the person who so unwarily advertised in the daily press his interest in the solution of the Battersea Park mystery.”
“That appears to me to be an argument for our both going,” objected the detective.
“Far from it,” said Lord Peter. “Why play into the hands of Crimplesham-X by delivering over to him the only two men in London with the evidence, such as it is, and shall I say the wits, to connect him with the Battersea body?”
“But if we told the Yard where we were going, and we both got nobbled,” said Mr. Parker, “it would afford strong presumptive evidence of Crimplesham’s guilt, and anyhow, if he didn’t get hanged for murdering the man in the bath he’d at least get hanged for murdering us.”
“Well,” said Lord Peter, “if he only murdered me you could still hang him—what’s the good of wasting a sound, marriageable young male like yourself? Besides, how about old Levy? If you’re incapacitated, do you think anybody else is going to find him?”
“But we could frighten Crimplesham by threatening him with the Yard.”
“Well, dash it all, if it comes to that, I can frighten him by threatening him with you, which, seeing you hold what evidence there is, is much more to the point. And, then, suppose it’s a wild-goose chase after all, you’ll have wasted time when you might have been getting on with the case. There are several things that need doing.”
“Well,” said Parker, silenced but reluctant, “why can’t I go, in that case?”
“Bosh!” said Lord Peter. “I am retained (by old Mrs. Thipps, for whom I entertain the greatest respect) to deal with this case, and it’s only by courtesy I allow you to have anything to do with it.”
Mr. Parker groaned.