{"product_id":"the-hidden-key-h-f-learn-9798181773110","title":"The Hidden Key: Easy English Adventure Club Book 4: An Exciting Mystery Story for ESL Kids to Learn English Naturally - Read, Practice Vocabulary, and","description":"\u003cp\u003e\u003cb\u003eLearn English Through an Exciting Mystery Adventure!\u003c\/b\u003e\u003c\/p\u003e\u003cp\u003eTom, Emma, Jack, and Sophie are back! The Adventure Club has a new mystery to solve. Sophie finds a very old key in her garden. But what does it open? Where did it come from?\u003c\/p\u003e\u003cp\u003eThe friends search the library, follow secret clues, and find a hidden box. Inside is a letter that leads them to a dark forest, an old well, and finally an ancient diary. Someone else is watching them. Someone who wants the treasure first.\u003c\/p\u003e\u003cp\u003eBut the treasure is not gold. It is something even more valuable.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eThis book is perfect for: \u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\u003cp\u003eESL \/ EFL students ages 9 to 14\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eYoung readers who love mysteries and adventures\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eTeachers and parents looking for graded readers\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eKids who want to improve English naturally\u003c\/p\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cb\u003eWhat makes this book special?\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\u003cp\u003eSimple A1 level words and sentences\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003e10 short chapters with cliffhangers\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003e50 new vocabulary words with definitions\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003e5 comprehension questions after every chapter\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eWriting and speaking practice tasks\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eFinal quiz and complete glossary\u003c\/p\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cb\u003eNo violence. No romance. Just fun and learning.\u003c\/b\u003e\u003c\/p\u003e\u003cp\u003eJoin thousands of young readers around the world. Open the book. Find the key. Start your adventure today!\u003c\/p\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eAuthor:\u003c\/b\u003e H. F. Learn\u003cbr\u003e\u003cb\u003eISBN-13:\u003c\/b\u003e 9798181773110\u003cbr\u003e\u003cb\u003ePublisher:\u003c\/b\u003e Independently Published\u003cbr\u003e\u003cb\u003eLanguage:\u003c\/b\u003e English\u003cbr\u003e\u003cb\u003ePublished:\u003c\/b\u003e 06\/15\/2026\u003cbr\u003e\u003cb\u003ePages:\u003c\/b\u003e 72\u003cbr\u003e\u003cb\u003eFormat:\u003c\/b\u003e Paperback\u003cbr\u003e\u003cb\u003eWeight:\u003c\/b\u003e 0.22lbs\u003cbr\u003e\u003cb\u003eSize:\u003c\/b\u003e 9.00h x 6.00w x 0.19d","brand":"H. F. Learn","offers":[{"title":"Paperback","offer_id":49173720137983,"sku":"9798181773110","price":9.99,"currency_code":"USD","in_stock":true}],"url":"https:\/\/www.whiterainbookhouse.com\/products\/the-hidden-key-h-f-learn-9798181773110","provider":"WR Book House","version":"1.0","type":"link"}