The Lion of Mars

We need other people in order to survive and thrive. Left on our own, we wouldn't last very long. Working and playing together, sharing ideas and resources, can make life better for everyone. Holding on to hurtful and angry feelings from the past will cause you to miss out on a lot of life's rewards and pleasures. Make sure you understand all the facts before you judge someone else's actions. Bravery is keeping going, doing what needs to be done, even when you're scared.

Narrator Bell discovers a dead body. All the adult settlers come down with a serious, contagious, viral illness. A past accident caused the death of an American settler. A pet mouse has to be exterminated. It's put out on the surface of Mars, with a brief comment that it was like he just fell asleep. Characters are in danger from a rover-driving accident and from being stuck outside the settlement. Someone breaks a collarbone and pain is mentioned. There's also a long, dark, scary tunnel where the narrator sees glowing green eyes.