Not the only one with a secret
Seeing who was on the other side of the door, Jessica cautiously asked why the Red Vampires had come. Since she felt like the other red vampires were most likely not aware that Quinn and Peter were not in the room, they wouldn't try anything funny.
If anything, she attempted to talk to them first to delay them from entering, or at least find out why they were at the door, but before she could do any of that, the last thing she was expecting was for a red aura-filled fist coming right through the door and into her stomach.
It was a powerful blow, and from a strong vampire as Derik, who was second in command within the Red Vampires group. Jessica went flying into the wall, crashing against it, she fell on the group. A wound appeared on her stomach, but it was slowly recovering due to the natural healing ability of vampires.