Here are a few sample pages from the Puzzle Pack for The Red Badge of Courage, including:
1 Fill In The Blanks page
1 Matching page
1 Magic Squares
1 Word Search
Answer keys are not included in the free sample to keep them out
of the hands of your students here on the Internet.
The whole Puzzle Pack has about 130 pages of materials and answer keys. You can buy it ($14.95) here: https://www.teacherspayteachers.com/Product/The-Red-Badge-of-Courage-Puzzle-Pack-1781619