The baron's driver helps Dr. Hewitt clean and dress Jervase's wound. He tears off a piece of the groundskeeper's shirt and ties up the wound, stabilizing the unconscious man. God willing, he just might pull through this...
As Trevor walks toward the front door, he hears another gunshot. Entering the house, he sees Inspector Diggory running up the stairs. He also notices an arm dangling from the ceiling, apparently emerging directly from the ceiling.
Inspector Diggory's shot kills one of the creatures, and he runs up the stairway, turning towards the study when he reaches the top.
And it's another Wisdom check for Trevor, DC 18 on this one.