In the last chapter, Tim and Sheila were out having lunch together when Tim brings up the subject of their relationship and then proposes to her.
Whilst all this is happening whilst Casper and his friends Chris and Jennifer, Kat Harvey and her dad James Harvey were inside the resident Whipstaff Manor. Chapter Four explores where Kat and Jennifer explore the playroom where Casper remembered his past and Casper shows Chris the up n atom machine leading to McFadden's secret Laboratory.
The second floor of Whipstaff Manor.
Chris and Casper were taking a walk across the hallway where the walls were covered with paintings and candle lights which lit up the whole room. Chris was enjoying seeing the pictures of some of Casper's late relatives and his father's new paintings as well until they found their way to the library room. Casper leads him to an arm chair before he speaks.
"Come on Chris, over here. Go on sit down."
"So why are you telling me to sit in this chair, Casper?" asked Chris.
"Its a shortcut to my dad's secret laboratory, I would hold on and wait until I see what it looks like." Casper said. "What do you mean?" asked Chris but Casper only pulled the secret trigger on the lampshade next to the chair.
In the instant, the chair went backwards leading towards the stairs, it spun around a bit before stopping as the stairs folded down into a track. In the next few seconds after that, Chris went sliding down in the chair towards the hidden trapdoor on the bottom of the stairs.