Fourteen year old Cornelia, or Nelia, is to all appearances a normal teenager. One dark night when she is on her way home from cello practise, she is ambushed by a man and dragged into the woods. Her trivial everyday life is turned upside down. Linus, a young and aggressive man from a world parallel to our own, has flown into our world to get Nelia. Nelia’s Riddle has the suspense of a thriller and at the same time a feeling similar to Astrid Lindgren’s universe.This is the first book in the trilogy about Nelia – the girl who belongs to two worlds.