Since all the possessed students were gone to get ready for the ritual, the entire theme park was quiet which gave Danny, Sam and the gang the perfect opportunity to get their plan ready to be put into action when the time came. After getting changed into their normal attire, Shaggy, Fred and Danny grabbed the disco ball that was shaped like a skull while Daphne, Sam and Velma grabbed some equipment and harnesses from the rock climbing and headed back to the cave.
Shaggy and Velma were on one side of the wall lifting the disco skull up the roof while Fred and Daphne were getting all the ropes ready in the middle. Danny held onto Sam in his ghost form as she made sure the disco skull was secured on the side making it unnoticeable to anyone in the room and then went up to the air vent and attached the rope to the vent.
Shaggy, Danny and Sam then landed on the while Daphne headed up on the harness making sure the ropes were secure and she was in position to get outside through the vents. Fred swung over to Velma to the side and got ready.
"Okay so we use the pulleys to tip over the vat" Fred started. Velma then continued, "Then Daphne will open the air vents from the outside and release the disco skull while Sam and Danny take care of Vlad Plasmius"
"As soon as we get the chance, I'll fight Plasmius and then Sam will catch him with thermos" Danny then said.
"The light will reflect off the skull, the creatures will explode, I'll find Scoob and we'll have like saved the world" Shaggy finished.
Suddenly they all heard drums being played. Sam then said, "Oh no! The rituals beginning"
"Quick Shaggy attach this to the vat" Velma said and passed him the end of the rope.
Shaggy grabbed it and headed for the vat as Fred said, "Sam, Danny get in position"
They both nodded and headed for one of the holes near the cave, Shaggy started tying the rope to the vat and then said as he turned, "All systems go"
But just as he was about to get out of the way, Shaggy's harness clip attached to the rope and before he could warn Fred and Velma, they both swung down and the rope suddenly came undone and instead of lifting the vat, they lifted Shaggy into the air and his back hit the roof. Suddenly the rope attached to the roof broke off and Daphne and Shaggy swung opposite sides.
Daphne hit the wall and held on while Shaggy screamed and rammed into one of Mondavarious's henchmen and knocked him into the wall, causing him to fall unconscious.
"This isn't good" Sam said as she and Danny helped Velma and Fred up.
The drums got louder and they all looked and saw the possessed students who were wearing different types of ceremonial clothes starting to enter the ritual room. Velma then said, "Quick hide the Damon Ridus"
They placed their backpacks in a hole in the cave and then Danny quickly changed into his human form to avoid suspicion as the students took their place around the cave and stood in straight lines. Shaggy coughed and stood up, he then heard giggling and turned to see Scooby in the room at the end sitting on some sort of lounge chair being fanned by some girls and fed Scooby Snacks.
Shaggy smiled and then thought of an idea, in the ritual room the students started to dance and chant the same language that Velma and Sam had heard the staff chant when they first arrived at the island. To avoid suspicion Fred, Sam, Danny and Velma began dancing along with them to make it look like they were still possessed by the creatures.
Emile wearing blue ritual robes and some sort of gold centre piece in the middle, Nagoo and Vlad Plasmius then entered the room and started walking towards the front. Fred then signalled to Daphne who was still hanging on the walls to get outside to continue on with the plan, she nodded and started climbing up the walls heading for the ventilation system.
Meanwhile Shaggy had just finished dressing in the guard's vest and helmet to make it look like he was one of them, he was about to go off to Scooby but stopped when he saw more of the possessed students heading down the hallway and chanting, so he stepped back and just started dancing to avoid suspicion.
The guard behind him woke up and stood up, he was about to grab him but as Shaggy flicked his arm back he punched him right in the face, he then flipped up his leg and kicked the guy right in the….well….right in the round tables and then as Shaggy kept pushing his arms back and forth in his dance, he accidently elbowed him right in the face three times and then one more knock in the face knocked him out again and he fell to the ground unconscious.
Once the students were gone, Shaggy headed off for Scooby. Meanwhile back in the ritual room, the students finished their dance but Fred didn't stop dancing like the others and Velma, Danny and Sam looked at the others with fear that they had been caught. Fred then finally stopped when he saw that they had been caught, Nagoo who was standing at the top of the podium grinned at them as well as Vlad and Emile who were at the bottom of it.
"Yo, yo, yo homedogs um…y'all forgot the next part of the dance" Fred tried nervously. "Where we do the Electric Slide"
Fred then started dancing while signalling to Danny to get ready to use his powers as they slowly started backing away but Vlad merely smirked and before they knew it, Fred, Sam, Danny and Velma were grabbed by Vlad's duplicates. Before Danny could do anything Vlad cuffed his hands with ecto cuffs and he felt his powers cancelled out, the duplicates then dragged them out to the front and then they handed them to normal guards as the duplicates disappeared.
Vlad then walked up to Daniel with a sickening grin and said, "Ah hello Daniel. I'm so glad you decided to join us"
"Plasmius! When did you get back on Earth you fruitloop?" Danny demanded.
Vlad merely chuckled and said, "A few months ago and then I met Emile here and we both share a single goal, we both want to rule the world so I teamed up and I knew that eventually get involved so I had him invite you here and I hoped that the creatures would take care of you but it looks like they didn't. Oh well, we still won in the end Little Badger"
Danny growled in anger at his archenemy. Emile then said, "Well children, welcome to my little end of the world party, I've waited a long time for this moment"
Plasmius walked over to their back packs and pulled out the Damon Ridus out from it and brought it to Emile as he said, "Oh and thank you for returning the ultimate party favour: the Damon Ridus"
Emile then stood on the rock and announced, "And now behold the sacrifice"
Scooby waved to the people as he was carried into the room, Shaggy was carrying one side of it with the mask down and pretending to be one of the guards.
"Psst!" Shaggy said.
Scooby turned and then asked, "Shaggy?"
Shaggy smiled and pulled up his mask and said, "Scooby! Let's run for it. We like got to get out of here"
"Uh, uh. I'm a sacrifice" Scooby said.
"A sacrifice? Dude that's not a good thing Scoob" Shaggy said with fear.
Danny struggled to get out of the guards grip, feeling useless with these cuffs on his hands since they cancelled his powers. He looked at Scooby with worry and felt like they failed.
"I'm sorry I yelled at you and I'm really sorry that I haven't been a very good friend since we got here" Shaggy said. "But listen to me bro, you gotta trust me now"
"But you don't trust me!" Scooby retorted still feeling hurt.
"I do trust you Scoob. Now look, who's your best buddy?" Shaggy asked.
Scooby thought and then answered, "Shaggy"
"That's right and who's my best buddy in the whole entire world?" Shaggy then asked.
"Scooby Doo?" Scooby then asked and began tearing up. Shaggy nodded and said, "That's right Scoob you are. We're like two trippy peas in a far out pond man"
Scooby smiled and nodded, glad to have his best friend back. Shaggy then said, "And best buddies trust each other so let's do what we do best, let's run out of here screaming in fear like a couple of lunatics okay?"
"Okay" Scooby said as they stopped walking and started lowering the chair down.
They were about to when suddenly a claw machine that was controlled by Nagoo went into Scooby's chest. Shaggy then screamed, "Scooby Doo!"
In just a matter of seconds the claw pulled Scooby's soul out of his body and then Scooby's body went limp as Shaggy screamed, "Scoob!"
"Hey look at me!" Scooby's soul said as it was held in the air by the claw.
Emile then placed the Damon Ridus on his chest where the gold centrepiece was, Shaggy was grabbed by a guard and his mask was ripped off as the souls from the vat started circling around in the air like a tornado.
Emile then announced, "The moment is at hand, through the Damon Ridus I shall absorb the energy source"
The Damon Ridus opened up and then all the souls started going inside Emile and he started absorbing their energy, the souls screamed as they were absorbed into him. Scooby started whimpering in fear as Nagoo started placing him near Emile.
"And now to complete the transformation, I shall absorb the pure one" Emile announced. "Ultimate power shall be mine!"
Shaggy put on a determined look and shouted, "Nobody absorbs my pal!"
He then elbowed the guard that was holding him in the stomach causing him to let go of him and then ran over and jumped onto the claw and started swinging on it, as the claw moved he knocked over Emile to the ground and he was cut off from the swirling tornado of souls. The rest of the souls went back into the vat while Emile laid down on the ground motionless and the Damon Ridus closed and glowed an ominous green.
Shaggy held onto the claw and then Scooby broke free of the claws grasp and cheered, "I'm free!"
Scooby flew around like crazy knocking out some guards including the ones holding onto Sam, Fred, Velma and Danny. Sam pulled out her wrist ray and zapped the cuffs of Danny's wrist allowing him to change to change into his ghost form.
"Fred, Velma get the Damon Ridus!" Danny shouted as he and Sam started blasting the guards back with ghost rays and blasts from the Fenton Wrist Ray.
Fred and Velma immediately headed over to Emile. Nagoo shouted as he shook the claw with the control, "Get off my pincer!"
Shaggy let go and landed right next to Scooby's body, he then watched as Scooby's soul flew right into his body. Scooby laughed as awoke and sat up from the ground, "Cowabunga!"
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