Experiencing danger during hide-and-seek with 〜目にあう

During a hide-and-seek game at the park, Ayumi hides in a car trunk and falls asleep. She wakes to find the car moving and discovers a bag of money, a slimy saw, and what seems like a severed head. Conan, tracking her via their Detective Boys badges, prepares to pursue on his electric skateboard. Genta and Mitsuhiko join him on, but Conan urges them to stay behind due to the danger.