
Solve mysteries, build character, and strengthen literacy — all in one!
The Mystery of the Missing Key from the Story Builder Series – Level 4 is a complete 30-unit reading comprehension and writing resource that helps students explore moral values through engaging, mystery-themed stories. Each unit includes vocabulary, story text, comprehension, writing, and grammar focus.
What’s Inside
30 original mystery & character-based stories (≈600–700 words each)
Essential Question & Vocabulary per unit
10 comprehension questions per story
Writing, Discussion, and Grammar sections
Review & Certificate of Completion
Clean black-and-white printable format (US Letter)
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