This storybook illustrated in Lego is a Halloween mystery adventure. A bank robbery occurs on Halloween by two crooks disguised as a vampire and a ghost. The robbers decide to hide in an abandoned house, rumored to be haunted. Jack and his friends at first think that the house and ghost are just part of Halloween fun. The children become suspicious of the ghost and solve the crime that occurred in Lego city. There are questions on many of the pages to encourage discussion and inspire imagination with you and your child. This is the forth book in "The adventures of Jack series".