I decided to put my cards on the table--so to speak.
"Look, Mr. Crawly Crustacean--I received a message with a cry of help from Polly Polyp. You have admitted that she is here and if she is not kidnapped--well, where is she? We want to see her and talk to her!"
"Yeah!" said Starry. "Just like Constable Crab said! We wanna talk to her--NOW!"
"Oh, my impetuous Starfish! Do you REALLY? Well I can certainly allow THAT! Come out, Pretty Polly--and meet our guests!"