Derek sees Melody but decides to avoid the mob of people, he would love a private place to have a chat with Melody but he doesn't see that happening right now. So he checks the cottage and breathes a sigh of relief to see Jezebelle there. He had been worried it would be her blood on the bloody knife. He quickly makes his way to her.
"Jezebelle I need to talk to you and Melody somewhere private as soon as we can."
He seems a bit flustered and obviously upset about something. He doesn't want to bring up the bloody knife in front of the kids, he hides the wrapped up knife behind his back.