Continuity mistake: While Dr Harvey is fighting the trio his pants are cut off, seconds later he comes out of the closet and his pants are fine.
Other mistake: When Kat chooses her bedroom in the mansion the bed should be covered in dust but it's not.
Continuity mistake: Before Carrigan and Dibs get in the mansion for first time he's soaked by the rain but seconds later he is dry.
Continuity mistake: After Kat goes through the Up and at 'Em machine while sitting in a chair, we see Carrigan and Dibbs go through it, and they're in another chair. They then leave the chair and walk through the tunnel into the lab. Later, when Casper pushes Kat backwards through the machine, the chair that Carrigan and Dibbs were on is nowhere to be found.
Answer: It was not Casper (now a ghost of 12 yr old boy) who wrote there was a hidden treasure at Whipstaff Manor. It was Casper's father, Mr. Mcfadden. The treasure in the box is an autographed baseball which used to belong to Casper, before he got sick and died. Mr. McFadden missed his young son Casper, so he invented a machine that can bring a ghost back to life. He considered Casper's baseball a treasure, because to him it is the greatest treasure there is - the baseball that belonged to his 12 yr old son before he died.
Super Grover ★