Fairy Treasure — Gwyneth Rees

Second in the series is a gently entertaining and charming fairy story that also deals cleverly with a young child's real problems and emotions

Connie is not a child who likes books, so she's not too pleased when she is sent to stay with her eccentric author aunt. But then Connie meets Ruby -- a book-fairy -- in the dusty old library. Ruby is in trouble: she has broken fairy-law by trying to take a piece of jewelry back to fairyland through the "gateway" of a fairy-dust-sprinkled book. And now the jewelry has disappeared, and Ruby can't get back home! Can Connie help Ruby find the missing jewelry before the doorway to fairyland is closed forever?