The Ghost in a Blue Velvet Dress

Horror/ Children's Books; "The girl was standing by the window, looking at the lavender, her small face solemn. 'Hello,' said Jane bravely. The girl turned slowly, gave a small smile...and disappeared." Jane is a bookworm. So left with the bookless Hildreths when her parents sail off to Scotland. Jane is soon bored. Then, as if by magic, a book appears on her bedside table - and the next night, another one...But how and from whom?