3 Books Found

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"Children’s book with a purple cover. Family moves to a creepy town on Halloween. Boy babysits his baby sister, a boogeyman/crow-associated villain kidnaps her into a dark alternate dimension. The boy enters the other world through the fireplace in his house and goes alone to rescue her. Children’s/middle-grade novel, likely read around 2022 (book itself could be older). Family moves to a creepy town on Halloween and the boy immediately thinks something is wrong. He’s babysitting his baby sister when a boogeyman-like villain associated with crows kidnaps her into an alternate/dark version of the town. The boy goes alone to rescue her and enters the other dimension through the fireplace in the house. Cover may have been mostly purple. Possibly by an Australian author."