From ice bombs to USOs (unidentified submarine objects), this collection of enigmatic topics will pique students' interest and encourage them to read to get to the bottom of these mysteries! Intrigue your students with irresistible stories! Crafted to grab the struggling reader's attention, these stories hone in on specific reading skills such as determining the author's purpose; defining vocabulary; making predictions; and identifying details, synonyms, antonyms, and figures of speech. Comprehension questions in standardized-test format are included to build confidence without the pressure of testing. Each book includes: fascinating nonfiction stories to engage struggling readers, one- and two-page reading selections; multiple choice, fill-in-the-blank, and true/false questions; as well as short-answer writing practice.