Witty and charming, New York Times-bestselling author Kerstin Gier’s contemporary young adult novel A Castle in the Clouds follows a girl as she navigates secrets, romance, and danger in an aging grand hotel.

Way up in the Swiss mountains, there’s an old grand hotel steeped in tradition and faded splendor. Once a year, when the famous New Year’s Eve Ball takes place and guests from all over the world arrive, excitement returns to the vast hallways.

Sophie, who works at the hotel as an intern, is busy making sure that everything goes according to plan. But unexpected problems keep arising, and some of the guests are not who they pretend to be. Very soon, Sophie finds herself right in the middle of a perilous adventure–and at risk of losing not only her job, but also her heart.

Mysterious doors with lizard-head knobs. Talking stone statues. A crazy girl with a hatchet. Yep, Liv’s dreams have been pretty weird lately. Especially this one where she’s in a graveyard at night, watching four boys perform dark magic rituals.
The really weird thing is that Liv recognizes the boys in her dream. They’re classmates from her new school in London, the school where’s she’s starting over because her mom has moved them to a new country (again). But they seem to know things about her in real life that they couldn’t possibly know, which is mystifying. Then again, Liv could never resist a good mystery. . . .

Things seem to be going well for Liv Silver: she’s adjusting to her new home (and her new family) in London; she has a burgeoning romance with Henry Harper, one of the cutest boys in school; and the girl who’s been turning her dreams into nightmares, Anabel, is now locked up. But serenity doesn’t last for long.

It seems that Liv’s troubles are far from over–in fact, suddenly they’re piling up. School gossip blogger Secrecy knows all of Liv’s most intimate secrets, Henry might be hiding something from her, and at night Liv senses a dark presence following her through the corridors of the dream world. Does someone have a score to settle with Liv?

Romance, adventure, and danger abound in Dream On, the second audiobook in the Silver trilogy.

In Kerstin Gier’s Emerald Green, Gwen has a destiny to fulfill, but no one will tell her what it is.

She’s only recently learned that she is the Ruby, the final member of the time-traveling Circle of Twelve, and since then nothing has been going right. She suspects the founder of the Circle, Count Saint-German, is up to something nefarious, but nobody will believe her. And she’s just learned that her charming time-traveling partner, Gideon, has probably been using her all along.
This stunning conclusion to The Ruby Red Trilogy picks up where Sapphire Blue left off, reaching new heights of intrigue and romance as Gwen finally uncovers the secrets of the time-traveling society and learns her fate.

The course of dream travel never did run smooth–at least, not in Liv Silver’s experience. Able to visit other people’s dreams (whether they want her to or not), Liv has solved mysteries, unearthed difficult truths, fought madmen, and escaped life-threatening peril, all from the comfort of her own bed. But Liv’s troubles are just beginning…

A rocky romance, a malicious blogger with a hidden identity, a wedding, and a classmate (or two) dead-set on revenge all await Liv in this action-packed conclusion to the Silver trilogy.

Gwyneth Shepherd’s sophisticated, beautiful cousin Charlotte has been prepared her entire life for traveling through time. But unexpectedly, it is Gwyneth who in the middle of class takes a sudden spin to a different era!
Gwyneth must now unearth the mystery of why her mother would lie about her birth date to ward off suspicion about her ability, brush up on her history, and work with Gideon–the time traveler from a similarly gifted family that passes the gene through its male line, and whose presence becomes, in time, less insufferable and more essential. Together, Gwyneth and Gideon journey through time to discover who, in the 18th century and in contemporary London, they can trust.
Kerstin Gier’s Ruby Red is young adult novel full of fantasy and romance.

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.