"I still say fish is fish!" Tucker said.

"Guys," Danny said as Sam began to open her mouth, "Don't start," that prevented the revival of an 11-year old argument. Danny flipped through some more pages. They showed Danny and Jazz's ageing through the years, and Jack's gaining his grey hair. Danny stopped at a picture of the lab. Jack, Danny, Sam, and Tucker were all there. His dad looked the same as he did now. Tucker finally had hair and glasses, but no cap. Sam was still wearing green. Danny's hair looked more like it did now.

"Wasn't that the first time your dad gave us a lesson on ghosts?" Sam asked.

"Yeah, in second grade. I think it was the day where Tucker threw up in your lunch box and told you Ricky Marsh did it," her memory brought back to that, Sam glared at Tucker, who laughed nervously.

"Ex-nay on the eminder-ray," he muttered to Danny before looking at the picture.

---

"So, kids!" Jack walked up to the three chairs, "Anything interesting happen at school?"

"Ricky Marsh threw up in my lunchbox!" Sam said angrily, her arms crossed. Danny gave Tucker a look.

"Well you're about to have a lesson worth learning. A lesson on ghosts!" he ran over to a computer and began hacking away at the keyboard, "With the satellite on the roof half-done, I still can't get a reading on the entire city, but I can look for ghosts in the neighbourhood. And...there are none," he sounded a bit disappointed, "But if there were any, they'd be on here. So, you kids ready to learn about ghosts?"

"Sure!" Sam became excited.

"Alright," Danny smiled.

"I guess..." Tucker seemed a bit nervous.

"Well, the first order of business is to remove some superstitions from your mind. Like that there isn't a scientific explanation for ghosts, that they're just supernatural. The spirit of a human being exits the body when dead. If the body is put to rest, the spirit ends up in the ghost-zone, a realm of ectoplasm. Now, if the ghost is exposed to certain kinds of ectoplasm, it can mutate and transform. A normal-sized human can be shrunken into a tiny face with legs. Different kinds of ectoplasm effect ghosts in different ways. Now, if was exposed to green ectoplasm, the most common kind and the type I use for powering all my ghost equipment..." Jack didn't realise his discussion had turned boring, but it had. While he had his back turned, the three kids slid off their chairs and started looking around the lab. Jack had designed and built everything, but if it weren't for Maddie, hardly any of these things would work. More likely than not, they would've set off explosions that would bring the house down. But since Maddie was around, everything worked (most of the time), and there were plenty of things to look at. Test tubes filled with ectoplasm, paranormal scanners, lasers, ghost-trackers, an old, half-eaten balogna sandwich...there was even a sink.

"Whoa..." Tucker whispered in awe, "You guys have a lot of stuff."

"You should see my dad's shed," Danny smirked.

"What's this thing?" Sam pointed to what looked like a large microscope with one too many adjusting knobs. Jack was still rambling, his back to them. Curious, the three climbed up on the table and began looking over the contraption. Altogether there were 20 knobs and five buttons on the thing, which could be turned and moved as if one was aiming a canon.

"Wonder what these knobs do?" Tucker commented. He spun one around a few times, causing a series of lights going from green to red to appear along the side of the machine. Now things were getting worrisome.

"OK, Tucker," Sam said quickly, "Maybe you should stop messing with this thing."

"Relax," he smiled, "What's the worst that can happen?" as he leaned on the machine, his elbow hit a button. All of the lights turned red, and the machine began to shake violently. The three kids quickly leapt off the table and dashed to their chairs and prepared for the worst. A huge bolt of red fired over them, causing the table at the far side of the room to explode.

"...Now, if a ghost is not put to rest..." Jack finally turned around; he had noticed a thing of what went on. He did noticed how much Danny, Sam, and Tucker were shaking.

"Look at you kids!" he said, "You've been drinking in every word I've said and are shaking in anticipation of what I have to say next! So I'll keep going. If a ghost is not put to rest..."