Eulalia the owl helps get Paula and Philipp on the right track. They discover that their co-workers from the Hamburg newspaper are in on the game.
Paula, Philipp and Eulalia find out that the Hamburg newspaper thought up the shark in the port basin and staged the whole thing in order to sell more copies. Later, Philipp and Paula get in a fight over the use of a particular word. Philipp hopes that his invitation to Port Willkomm-Höft will calm Paula down.
If Philipp had paid closer attention to his word choice, Paula wouldn't have gotten upset with him. A verb prefix may be short, but it can alter the whole meaning of the word. It's also important to note that some verb prefixes are separated from the infinitive.