Am thinking of books i loved as child, and there is one that keeps coming into my head and I can't remember what it was.
It was a collection of short stories- one about a princesses necklace made from pearls, iirc. But the most distinctive thing was the illustrations, which were all in black silhouette. I should KNOW who this is, but i just can't remember.
Keep thinking Joan Aiken, but not sure?