He was still half delirious, but he could see men working frantically to build a net of something around his bed, while a wet, thick thing flopped and drooled beyond the door, apparently immune to the attacks of the hospital staff.
The wet, thick thing behind the door was his loyal dog Fred.
mnli hypothesis: The wet, thick thing behind the door was his loyal dog Fred. premise: He was still half delirious, but he could see men working frantically to build a net of something around his bed, while a wet, thick thing flopped and drooled beyond the door, apparently immune to the attacks of the hospital staff.