I'm currently devouring this series. I have a question about something in One Salt Sea. Danny is relating to Toby what the rocks from the redwood forest said, and the Luidaeg asked if they wept when the towers fell. Danny and Toby had no idea what she meant. Anyone know what the towers are? I jumped straight to 9/11, and the WTC towers falling. But Toby et al didn't -- so, either I got the wrong towers, or they're in a parallel universe.