The second book in the Ruby Red trilogy by Kerstin Gier, Sapphire Blue, begins where Ruby Red left off. Gwyneth is forced to learn eighteenth century history, politics, behavior and culture for time travel. She’s also unsure of who to trust, Gideon or any other time travelers or guardians. She meets her grandfather when he’s a young man and before he was married. The intrigue, mystery and espionage increase in this installment of the trilogy. Gwyneth is a lovable teenager who has been thrown into a world that she never wanted to belong to. Romantic gestures from Gideon and trying to figure out who is trustworthy keeps Gwyneth on her toes. More twists and turns happen at the end of the book making me anxious to read Emerald Green, the next and last book in the Ruby Red trilogy. 4 stars for suspenseful intrigue!