Linnets and Valerians by Elizabeth Goudge
One of my favorite chapter books for children, this is an old-fashioned story full of magic and intrigue and a happy ending for all after some nefarious deeds are done. When the four Linnet children run away from their mean grandmother, they stumble upon their previously unknown uncle, who takes them in. The children find a happy home with their uncle and his happy-go-lucky gardener and they make friends with an older woman named Lady Alicia. Lady Alicia has a tragic mystery in her past that the children help her to solve, bringing happiness back to her life and helping the entire village to heal over a past wrong.