Here are some other books you might enjoy:
A House Called Awful End by Philip Ardagh.
When Eddie's ill parents become "a bit crinkly round the edges," he is taken by his great-uncle and great-aunt, Mad Uncle Jack and Mad Aunt Maude, and embarks on adventures that involve strolling actors, St. Horrid's Home for Grateful Orphans, and a carnival float shaped like a giant cow. This is the first of three books in the series.
The Wolves of Willoughby Chase by Joan Aiken.
Wicked wolves and a grim governess threaten Bonnie and her cousin Sylvia when Bonnie's parents leave Willoughby Chase for a sea
voyage. Left in the care of the cruel Miss Slighcarp, the girls can
hardly believe what is happening to their once happy home. The servants are dismissed, the furniture is sold, and Bonnie and Sylvia are sent to a prison-like orphan school. It seems as if the endless hours of drudgery will never cease. With the help of Simon the gooseboy and his flock, they escape. But how will they ever get Willoughby Chase free from the clutches of the evil Miss Slighcarp?
The Canning Season by Polly Horvath.
Thirteen-year-old Ratchet spends a summer in Maine with her eccentric great-aunts, hearing strange stories from the past and encountering a variety of unusual characters.
The Thief Lord by Cornelia Funke.
Two brothers, having run away from an aunt who plans to adopt the
younger one, are sought by a detective hired the their aunt. They find shelter and protection with Venice's "Thief Lord."
Troll Fell by Katherine Langrish.
Forced to live with his evil identical-twin uncles after his father's
death, Peer tries to find a way to stop their plan to sell the neighbor's children to the trolls.