Image Item No. Description  b19hp08 (Inv)  Harry Potter - Build Your Own Adventure Catalog: Books: Idea Book: Harry Potter  b19hp09  Harry Potter - Build Your Own Adventure (with Poster) Catalog: Books: Idea Book: Harry Potter  b19hp04  Harry Potter - Build Your Own Adventure - book only entry Catalog: Books: Idea Book: Harry Potter  b21hp10dk  Harry Potter - Byg dit eget magiske eventyr (Danish Edition) Catalog: Books: Idea Book: Harry Potter