The body of Shiraami University basketball team member Urushibara is found inside a burning tent. When Conan examines the interior, his attention is drawn to the single bamboo skewer mixed in with the melted candle. Conan deduces it must have been used in some kind of trick and suspects the killer is among his classmates Midori, Ashizawa, and Danno. Inspector Yuminaga questions the three who visited Urushibara's tent and suspects Danno, the last to visit the tent, killed him. Later, with the help of a photo of the charred Urushibara's left hand and his playing friends, Conan identifies the killer's trick...
El inspector Yuminaga llega a la escena y comienza a investigar el caso con ayuda de Kuroda y la Liga Juvenil, pero Haibara tiene miedo de que Rum esté más cerca de lo que ella cree.
警察开始调查帐篷燃烧的原因，篮球社的成员都有不在场证明。柯南从段野的证词那里发现了奇怪之处，黑田管理官也发觉了异样，这不是一起意外自杀，而是故意杀人事件。柯南从大家做的橡子挑担偶人得到了启发，怀疑是有人做了一个自动起火装置故意暗杀了漆原史昭。
Grazie a un suggerimento di Rumi, Conan riesce a capire che chi l'ha ucciso ha creato una sorta di timer per far credere che la vittima fosse ancora sveglia.
