相信很多小朋友已經跟著傑克和安妮，坐著神奇樹屋到各地去冒險過了。恐龍谷裡有嚇人的暴龍，城堡裡有神祕的騎士，金字塔裡有可怕的木乃伊，另外他們還遇上了邪惡的海盜船長和美妙的寶藏……每一場冒險都是一場驚奇，也是一次知識的探險。
　　但是傑克和安妮穿越時空回到家之後，心裡還是有著各式各樣的疑問，於是認真的他們一起到圖書館找書、到博物館參觀學習、到網路上找資料，做了許許多多的研究，最後寫成了「神奇樹屋小百科」。他們花了許多精神力氣，才蒐集到各種知識、照片、有趣的小故事，並配上有趣的插畫。
　　現在，傑克和安妮不僅要和大家一起坐著神奇樹屋去探險，還要跟大家分享有趣又實用的知識！請跟著傑克和安妮，一起來研究學習吧！
★本書中譯本《神奇樹屋小百科11：古希臘與奧林匹克》由小天下出版
The #1 bestselling chapter book series of all time celebrates 25 years with new covers and a new, easy-to-use numbering system Getting the facts behind the fiction has never looked better. Track the facts with Jack and Annie
When Jack and Annie got back from their adventure in Magic Tree House #16: Hour of the Olympics, they had lots of questions. What did the ancient Greeks wear? What did they do for fun? Where were the very first Olympics held? How are our modern Olympics similar to the ancient Olympics? Find out the answers to these questions and more as Jack and Annie track the facts. Filled with up-to-date information, photos, illustrations, and fun tidbits from Jack and Annie, the Magic Tree House Fact Trackers are the perfect way for kids to find out more about the topics they discovered in their favorite Magic Tree House adventures. And teachers can use Fact Trackers alongside their Magic Tree House fiction companions to meet common core text pairing needs.
Did you know that there's a Magic Tree House book for every kid?
Magic Tree House: Adventures with Jack and Annie, perfect for readers who are just beginning chapter books Merlin Missions: More challenging adventures for the experienced reader Super Edition: A longer and more dangerous adventure
Fact Trackers: Nonfiction companions to your favorite Magic Tree House adventures
Have more fun with Jack and Annie at MagicTreeHouse.com

瑪麗．波．奧斯本、娜塔莉．波．博以斯Mary Pope Osborne  and  Natalie Pope Boyce
　　瑪麗與娜塔莉是姊妹，從小隨著從軍的父親旅居世界各地。今天，瑪麗住在美國紐約市與康乃狄格州；娜塔莉則住在麻薩諸塞州。瑪麗為美國知名兒童文學作家，筆下的「神奇樹屋」系列書籍廣受好評，深受孩童喜愛。瑪麗與娜塔莉合力寫作了多本神奇樹屋小百科。
　　他們兩人針對本書的創作表示：「在這次的研究中，我們經歷了一場回到古羅馬的想像之旅。我們幾乎可以看見和聽見人聲鼎沸的古羅馬街道，認識古羅馬人如何飲食、工作和遊戲。只要在研究中加點想像力，你也可以得到很棒的禮物……你將發現自己彷彿身在古羅馬的世界。當我們還是小女孩時，會裝扮成各式各樣的人。有一次，我們扮演露天圓形廣場的演員，而且假裝自己是空中飛人。如果那時我們就知道更多古羅馬的知識，遊戲將會完全不同。我們可能會變成女格鬥士呢！」
繪者簡介
薩爾．莫多卡 Sal Murdocca
　　童書插畫家，繪有英文版「神奇樹屋」系列書籍。
MARY POPE OSBORNE and NATALIE POPE BOYCE are sisters who grew up on army posts all over the world. They are working on more Magic Tree House(R) Fact Tracker books to give Magic Tree House readers facts and information about places, time periods, and animals that Jack and Annie discover in the Magic Tree House adventures.
Mary lives in Connecticut. Natalie makes her home nearby in the Berkshire Hills of Massachusetts. Mary is the author of all the Magic Tree House fiction titles as well as many more books for kids.
SAL MURDOCCA has illustrated more than 200 children’s trade and text books. He is also a librettist for children’sopera, a video artist, an avid runner, hiker, and bicyclist, and a teacher of children’s illustration at the Parsons School of Design. Sal lives and works in New York with his wife, Nancy.