Authors:

That was Sydney Sage," said Lissa. "I thought they were all in West Virginia. Why isn't she with Rose?" "That," said Abe darkly, "is an excellent question." "Because they were apparently kidnapping Jill Mastrano in Detroit," said Christian. "Which is weird. But not the craziest thing I can think of Rose doing.

Richelle Mead (2010). “Last Sacrifice: A Vampire Academy Novel”, p.235, Penguin
That was Sydney Sage, said Lissa. I thought they were all in West Virginia. Why isn't she with Rose? That, said Abe darkly, is an excellent question. Because they were apparently kidnapping Jill Mastrano in Detroit,