Hidden World by Graham Masterton had so much promise. A girl has concussion, starts hearing voices coming from the wallpaper in her bedroom: is she going mad, or is something more sinister afoot?
And yet… and yet. The book is dull; the story is unrealistic (which is admittedly normal with fantasy fiction, but unrealistic even within the bounds of its own covers); it is allegedly ‘adult fiction’, but is written about children in a way that adults and children alike will find intensely boring. Definitely not recommended.