Please note that this eBook is a teaching guide for the novel described below. This product does not contain the novel. A secret code found in a medieval manuscript claims to reveal the location of a passage to the center of the Earth. A professor and his nephew set out on a timeless adventure through a volcano in Iceland. Oceans, prehistoric creatures, massive storms and near-death explosions await them. But do they make it to the very center of the Earth? Reproducible chapter questions, plus comprehension questions, a story summary, author biography, creative and cross curricular activities, complete with answer key. This enhanced eBook gives you the freedom to copy and paste the content of each page into the format that fits your needs. You can post lessons on your class website, make student copies, extract or rotate pages, and edit the contents of the file.