Notes to remember for when the next book comes out.
At the end, Owen and his girlfriend Lexie, and Ella and Cay, are trying to go through the gate in Montana all together, with Owen's bag of stones that he had dug up at the Bristlecone gate years earlier. Owen and Lexie wind up in Ravensguild, Ella's home, while Ella and Cay wind up at the place where the gang used to wind up when they went through from Bristlecone.
Meanwhile, 15 years earlier, Ella's mother has been wandering around Philotheum, mostly invisible, trying to find maps and a stone so she can go through the gate to get back home. She had recently figured out that when Ella was born she was actually a twin, but the twin was taken away. Turns out she was taken by the bad guys who try to grab everything magic. Lyonet sees the baby, knows it's hers, and trades herself to the bad guys for the baby. The baby grows up to be named Panda.
Never explained is how Lyonet is writing in her magic journal in Philotheum, but it is found in Ella's bicycle basket in Ravensguild. How did it get back there? How did Ella's caretaker know there was a journal that was supposed to go to Ella? Who brought it to her? The sister?