I played The Adventure of the Malabar Pearl through to a correct warrant. The route-following structure and honest countdown create real pressure, and the final three-trait registry deduction is satisfying. One moment confused me: I reached Charing Cross with the route solved but without realizing I still needed three identifying traits, so I used Watson and the hint then did most of the final deduction for me. A subtle progress cue such as ‘0/3 identifying traits found,’ or a less explicit first hint, might preserve the aha moment. The period voice and the post-mortem explanation were excellent.