Karliquai - The Whiteland Novels, #2

From author Rosie Cranie-Higgs comes a masterpiece of psychological horror and suspense set against the snowy and stark Swiss Alps. Deftly mixing Scandinavian folklore and dark fairy tales, Rosie's creepy and atmospheric Whiteland series "takes readers down a terror-filled rabbit hole." (Publishers Weekly) to a realm that is impossible to leave. It's been one year since sisters Kira and Romy escaped the twisted realm of Whiteland.
Desperate and lonely, Kira has no one to talk to, or to convince her that she's not crazy, and that everything in Whiteland really did happen. Worse, Romy remembers nothing and Kira just can't bring herself to make her sister remember. On New Year's Eve, Kira agrees to go with her friends to a nightclub, where she hopes to finally forget everything and start fresh. Instead, she runs headlong into her past.
Callum is there. He's alive and his memories of Whiteland are intact. But Callum isn't the only thing that left Whiteland. A huldra has escaped, too, and it only has three things on its mind: punishment, revenge, and hunting down the trio that escaped. Now the three friends are on the run in the real world. Little do they know that the farther they go, the closer they are heading into madness.  The only thing worse than going into Whiteland is when it comes out after you.