Strange Is the Light by Sarah Maria Griffin

Strange Is the Light follows a passionately entangled group of childhood friends, fractured by the betrayals and secrets kept as they grew into adulthood.

Now, after twenty years, Daphne, Ronan, Leonie and Finn will finally have to face the consequences of cutting their last adventure short--having accidentally opened a rift into a dangerous alternate dimension while playing a mysterious RPG version of their childhood game.

Daphne never took her final turn... And there is a debt that must be paid.