It must have been his old age or just the fact that Madilyn exposed herself to him but the old maid never showed up again...
A new maid.

And as Pupper grew older she got sicker...
Still the old Squirrel Fever.
Matthew thought he was being...funny? He just could have been acting out since he took Gibson's death the hardest.

Well, since Madilyn's not being sexual with Gibson or anyone anymore she has time for the kids finally.
Hugging Josh.
Talking to Matthew and Kaisa. As can be seen Matthew is spotty. Yes he fell ill.
Madilyn tried making him some tea but he wasn't able to drink it.

The following night, Gibson made his first after death appearance.
He was sad. Crawled into bed with Madilyn to have a cry.
Still didn't help it looks like as he's still blue.

The same night, all of the kids had nightmares. Eventhough the monster defender lamps were in the room they still got scared.
Drama!
Josh went to get a parent. Since Madilyn was asleep, Gibson did the job.
Josh asked Gibson to spray the monster away.
Turns out, he couldn't. Too ghostly he must have been.
Josh then went to get mum.
Um yeah...he didn't know what was scarier - the monster under the bed or topless mum.

Gibson went on to possess a few things around the household. The kitchen sink for example. And broke it.
Muki enjoyed it fully.

Oh and this dude stopped by:
He wanted to break in and feed on Madilyn most probably but something stopped him. Maybe Gibson's ghost?
Well he went inside and had a little tender smooch with her.

Next day, Muki fell ill.
Pupper meeting new friends.
When they got home, Pupper fell ill straight away. Luckily the family had bought the treats that cure pets. The dogs mostly get Squirrel Scratch Fever so nothing new or interesting, no need to go to the vet all the time.
Giving Pupper the treat near the bush where the dogs fight squirrels all the time.