The Rescuers by Margery Sharp

This book shares almost nothing in common with the Disney movie other than the names of the characters and the mice that rescue people.

The Prisoners' Aid Society of Mice is planning to rescue a Norwegian poet from the Black Castle. The pet mouse of the ambassador's son, Miss Bianca, is sent by the society to recruit Norwegian mice and help her on her quest.

Snow Treasure by Marie McSwigan

This is a story of the adventures of a group of children in Norway who try to smuggle millions of dollars worth of gold past the Nazis during the Second World War.