Prof. Roland: Now look at what you've done! You've killed the Ruler of Time, meaning time will freeze and Ash will remain 10 forever! Now we need to cross over into the Mystery Dungeon universe to gather those Time Gears.
Lucas: Professor, what would happen to space when Palkia's dead?
Prof. Roland: ...I haven't researched that thoroughly.
*Dawn murdered Palkia as well, causing everything in space, including Earth, to disappear.*
Arceus: Damn kids, this is why adults don't give kids magical creatures that might destroy the whole universe.