154. The Great Train Mystery (by Lynn)

Mr. Krabs needs a recipe. It is in a locked box. Mr. Krabs gives SpongeBob the key to the box. SpongeBob and Patrick will get the recipe. They take a train. Plankton is on the train. He wants the key. SpongeBob and Patrick are very hungry. They go to the dining car. SpongeBob and Patrick meet a nanny and her baby. SpongeBob meets a porter. The porter does not like SpongeBob. He pushes SpongeBob off his seat! SpongeBob and Patrick leave the dining car. They want to hide the key. The key is gone! SpongeBob cannot find it! SpongeBob sees Plankton. He thinks Plankton stole the key! Patrick checks Plankton. Plankton does not have the key. Patrick lets Plankton go. SpongeBob asks Patrick to call the cops. Patrick shouts for the cops. The cops arrive. SpongeBob tells them about the missing key. SpongeBob points to the baby. "The baby has the key," SpongeBob says. SpongeBob points to the nanny. "She stole the key!" he says. SpongeBob holds the baby. The police chief searches the baby. He finds a stolen jewel! The nanny opens her coat. She is not a nanny. She is two brothers! SpongeBob has found the Jewel Triplets Gang! But he has not found the missing key. SpongeBob thinks the porter stole the key. Plankton wants the key. He jumps on the porter. A policeman shakes the porter. A stapler, a hammer, and an anvil fall out! A mask falls off the porter. He is really a ham sandwich thief! But SpongeBob still has not found the key. Wait! Patrick has something. It is the key! He gives SpongeBob the key. SpongeBob and Patrick solve the mystery! Now they can get the recipe. Plankton is right behind them.