The North Star No. 3 Express Leaving Ueno (1) Meitantei Conan : Season 1 Episode 144

Conan, Kogoro, and Ran take the overnight North Star Express to Hokkaido to meet a former client. Conan notices that the events is eerily similar to the plot of an unpublished novel written by his father, Yusaku, that had been stolen ten years prior.