Detective Conan: The Arrival of Hawkins

What would happen if some characters from "Aotu" appeared in Detective Conan?

(I'll do my best to keep everyone in character. The protagonist has her own romance, and isn't any character from Detective Conan. I won't break up any canon couples. Conan and Ai have a friendship-focused relationship. This isn't for kids. I just want to bring together two anime I love, so please don't flame me. Thank you.)

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