In the novel " Time Travel to Become Conan," Conan's identity was discovered by Xiaolan in the 174th chapter of " The Labyrinth's Crossroads." In this episode, Conan disguised himself as a primary school student and met Xiaolan in the shopping mall at the intersection. At first, Ran didn't discover Conan's true identity until Conan imitated Shuichi's voice in front of her and showed her his fake identity.