In Nacrene City, Ash and friends look for the Nacrene City Gym, only to find it inside the local museum! When they discover that the museum is haunted, the crew turn heroes for the night to investigate the disturbances. What strange force could be behind them? Then, it's time for Ash's next Gym battle, and it turns out his opponent has been keeping tabs on him! Does he have a chance against a Gym Leader who knows all his moves ahead of time?

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