They got back to Lady Ketti's home together and saw everyone still in her place.
Trevor smiled and told them that it was now safe to go back to their region as the crystal of grey light had been returned.
At first they didn't believe him, but when Lady Ketti confirmed it through a telekinetic means, they thanked Trevor and his friends for what they had done for the entire world.
After hours of emotion, they set off for the region of prototypes, while Amberose and her friends remained in Lady Ketti's place because they were beginning to like it there.
They got to the region of prototypes and met Lady Ertheilo in her cottage, and she told them that Ailo, Marie, and Six had gone to the region of the water sprites. That's where they'd be until Hindira gets over with her madness, if she'd ever be over with it.