Super Bubby 21: The Finale

Super Bubby 21: The Finale is the final Super Bubby book. It was preceded by Super Bubby 20: The Meaning of Life.

Plot
Bubby Kristy was glad to be reunited with Kristy, and explained her everything. She learnt Kristy and Zeus had parted ways, and both lived separately in their Pet City. Bubby and Kristy went to Bubby's home dimension. On Adam Island, they met up with Lulu, McKrit, Catcules, Doccy, Clyde, Cora, Lucy, JJ, Boston and Puss. Suddenly, Greg arrived and told them of his plans to blow up his time machine in the fifth dimension, destroying all the multiverse at once. Mick Dyson and Lenny Garrison arrived, dueling Greg, who fled, unleashing werewolves on them.

A werewolf bit Catcules, who instantly became one of them, traumatising Lucy. Lulu, who had silver bullets from the hospital, killed all five (including Catcules) before anyone else was infected. Bubby and Doccy rushed off to find Greg. Suddenly, numerous monsters from all their adventures attacked the others, who took cover in the house when the monsters weren't distracted.

Bubby and Doccy arrived at Greg's Home Island as a storm began. Zara gave Greg the bomb to blow up the time machine. Zara then grabbed a sword, alarming Bubby and Doccy but instead stabbed herself in the chest. Doccy then dueled Greg, who leapt into the time machine, followed by Bubby. Doccy returned to Adam Island. He told the others of his plan; erupt the volcano to scare the wildlife. Cora, Lucy and Lulu went to throw wood and logs in the volcano. Lulu distracted the creatures, sacrificing her life while Cora and Lucy fled and the volcano erupted, scaring off the creatures.

Bubby and Greg emerged in the fifth dimension, with the bomb. Bubby stopped Greg from activating it, then kicked him away. Greg then realised he was about to implode, as objects with atoms cannot survive in the fifth dimension. With a last look of remorse, Greg died and Bubby hid in the time machine.

Greg's Home Island exploded, and the time machine, unscathed, appeared out the front of the Zeus home. Doccy opened it to greet Bubby, while the others watched on to congratulate her. Unfortunately, she wasn't in there. Bubby had also imploded.

McKrit, Lucy, Cora, Puss and Boston left the island, depressed. Doccy, JJ and Clyde was traumatised, depressed and hysterical. Kristy, unable to return home, went with McKrit. The humans planned to stop travelling through space and time, so remained on the island, but isolated. In the end, the Zeus family never really got over her death, but lived on the island for many years to come, finally in peace.