A week after Violet's battle with the Graeae triplets, she learns why she was able to open the tiny room and to time travel. But once she realizes her extraordinary powers, her Aliathenian ancestors worry that she might expose their existence to Earth humans. Violet, her brother Ollie, and the other two remaining mutant children of the voyagers, Jomo and Chieko, use their exotic matter eyes to create a transversable wormhole. They travel to another universe to visit their planet of origin, Aliathenia, where they learn why the Aliathenians risked all to mutate their species for travel to Earth. Violet enters the Aliathenian collective consciousness with Jomo and Chieko and begins exploring the limits of her exotic matter powers. This instigates a life and death struggle with the Trucialdo hologram the Aliathenians send to mind them. This is the second book in the trilogy: The Sapphire Eye and the Emerald Tooth, Stardust and Sapphire eyes, and Stardust.