Sapphire Blue by Kerstin Gier (Ruby Red #2)

Description from Goodreads:
Gwen’s life has been a rollercoaster since she discovered she was the Ruby, the final member of the secret time-traveling Circle of Twelve. In between searching through history for the other time-travelers and asking for a bit of their blood (gross!), she’s been trying to figure out what all the mysteries and prophecies surrounding the Circle really mean.

At least Gwen has plenty of help. Her best friend Lesley follows every lead diligently on the Internet. James the ghost teaches Gwen how to fit in at an eighteenth century party. And Xemerius, the gargoyle demon who has been following Gwen since he caught her kissing Gideon in a church, offers advice on everything. Oh, yes. And of course there is Gideon, the Diamond. One minute he’s very warm indeed; the next he’s freezing cold. Gwen’s not sure what’s going on there, but she’s pretty much destined to find out.

Despite my general unease about middle books, I loved this book. OK, so it ended on another cliffhanger and it was generally used to provide information, but I love Gwen so much that I am willing to let that go. Plus the writing is compelling enough to make up for it. My only regret is that the third book doesn't come out until October. 

I love that Gwen is so willing to stick up for herself. And I love that she is a normal girl too. I would be so confused by Gideon's signals. One minute is can't get enough of her and then the next he acts like he can't stand her. He is a weird guy. And I know some of that has to do with the nature of time travel and that some of their future actions happen in the past and that they don't know why they do the things they do in the future. But still, he can't just give her the benefit of the doubt. 

And as to Gwen's secrets, I have a guess about her parentage (Lucy and Paul) but I have no idea about her ability to talk to ghosts and demons. Some don't seem surprised and most don't believe her. I do wonder how this will play out for her and what it has to do with being the Ruby.

Ruby Red Trilogy
Ruby Red