T-Rex: Sherlock Holmes, who was CURRENTLY the world's greatest detective but who knows what the future holds, scowled deductively.

T-Rex: This crime challenged even his trained (but maybe someone in the future could do better) mind!

Dromiceiomimus: Sherlock seems pretty down on his own skills here.
T-Rex: Not at all! He's just smart enough to see his failings, and to hope that he won't be the peak of detective evolution, that one day this world might produce even a BETTER crimefighter!

Utahraptor: You're inventing your own detective character, aren't you.
T-Rex: What?! No!

Utahraptor: You're inventing your own detective character and you're going to have the public-domain Sherlock Holmes show up in the story and say "Wow, this new person is WAY better than me! Yep, it's canon that this detective is the new and better version of me, well bye".

T-Rex: 〚thinks〛 That's way better than what I was planning, which was simply to have Sherlock time travel into the future and be even better there, because now he has access to a tricorder