Kid Book Match
If you like The Girlfriend, by R.L. Stine for its horror, suspense, and descriptive writing, you may like these books:
A Ghost In The Family,by Betty Ren Wright.
While visiting his friend Jeannie's eccentric Aunt Rosebud in a boarding house that may be haunted, ten-year-old Chad comes across a mystery involving a missing diamond bracelet.
Since you like mouse stories and The Tale of Despereaux you may like these titles too:
The mouse and the motorcycle by Beverly Cleary.
A reckless young mouse named Ralph makes friends with a boy in room 215 of the Mountain View Inn and discovers the joys of motorcycling.
Runaway Ralph by Beverly Cleary.
Ralph runs away looking for freedom but winds up a prisoner at a summer camp.
I've found some collections of horror stories for you, as well as some scary books that may be based on real events.
Spooky America: Four Real Ghost Stories / by Lori Haskins.
Recounts four fact-based tales of hauntings including a ghost horse on the coast of Massachusetts, a haunted painting at a Virginia plantation, a skeleton in Colorado, and a ghostly sea captain of California.
Ghosts / by Kelli M. Brucken.
Examines ghostly figures and what people have thought to be ghost-like experiences.
Haunted Houses / by Kelli M. Brucken.
J. K. Rowling's much-loved epic tale of Harry Potter, an orphan who also happens to be a magician, starts with Harry Potter and the Sorcerer's Stone: Rescued from the outrageous neglect of his aunt and uncle, a young boy with a great destiny proves his worth while attending Hogwarts School for Wizards and Witches.
This first book in Rowling's series is followed by Harry Potter and the Chamber of Secrets, Harry Potter and the Prisoner of Azkaban, Harry Potter and the Goblet of Fire, Harry Potter and the Order of the Phoenix, Harry Potter and the Half-Blood Prince, and finally Harry Potter and the Deathly Hallows.
If you like the Harry Potter series, you may like these:
The Amulet of Samarkand by Jonathan Stroud
Nathaniel, a magician's apprentice, summons up the djinni Bartimaeus and instructs him to steal the Amulet of Samarkand from the powerful magician Simon Lovelace.
Because of Winn Dixie by Kate DiCamillo
Ten-year-old India Opal Buloni describes her first summer in the town of Naomi, Florida, and all the good things that happen to her because of her big ugly dog Winn-Dixie.
The Chronicles of Narnia by C.S. Lewis
A classic series of fantasy books about the land beyond the wardrobe.
Dealing With Dragons by Patricia C. Wrede
A princess grows bored with life at the palace and takes up with a nest of dragons.