Scoo-Be or Not Scoo-Be?

Scoo-Be or Not Scoo-Be? is the first half of the third episode of The New Scooby-Doo Mysteries.

Premise
Next stop on the Cheapo European Tour, Denmark, and it seems there is something rotten in Denmark as the kids run into the ghost of Hamlet at the Castle Hotel Hamlet they are staying in. The ghost wants to let the kids know something though: "Beware, the Briny Boo!"

Synopsis
Insert details here.

Villains

 * Sea Demon
 * Other sea demon
 * The Ghost of Hamlet (revealed to be a good guy)

Locations

 * Denmark
 * Hotel Hamlet

Notes/trivia

 * The culprit's names, "Rosey Crans" and "Gilly Stern" play off a famous pair of minor characters in Hamlet: Rosencrantz and Guildenstern.
 * Yorick is another character mentioned in the play. Hamlet finds the skull of his old jester and says, "Alas, poor Yorick!"