一大早,鬼才俱乐部的柯北接到一通紧急电话,他的好友杰克探长说有一个经常在野外进行科学考察的动物学家在附近草原考察时意外死亡了,探长请柯北立刻前去协助调查。柯北挂了电话便出发前往事发地点。到达后,他发现意外身亡的动物学家躺在一间帐篷里,帐篷是搭建在一棵大树下的。帐篷旁边,一个年轻的学生模样的男人正在回答探长 Early in the morning, Kebei, a ghost club, received an emergency call. His friend Jack, a longtime detective, said that a zoologist often conducting scientific investigations in the wild died unexpectedly when he visited the grasslands nearby. To help investigate. Kebei hung up the phone will go to the site of the incident. Upon arrival, he found that the accidentally killed zoologist lay in a tent under a large tree. Next to the tent, a young student-looking man is answering inquirers