Kahn, Hena. Borgenicht, David. The Worst-Case Scenario Ultimate Adventure #2: MARS! Illustrated by Yancey Labat. Robert Zubrin- Contributor. 208 pgs. Chronicle Books, 2011. $12.99. . Language- G, Mature Content- G, Violence- G. This book places the reader in the “what if” situation. What if you were chosen to go on a Mars expedition to develop a colony there? You get to choose out of two different questions and your answer takes you to another part of the book. It is very interesting and you are in control of your destiny. It helps you to understand how to keep cool in a certain situation and teaches you about outer space. EL. ADVISABLE. Student Reviewed: ML- age 13.