My I ask what exactly your books are about?
One of them is about a dangerous mission to the moon. In the distant future, when space is the hottest theme around, the USTO (United Space Travel Organization) send 20 people to search the moon, because the USTO wants to have a space station on the moon. They get more what they bargained for when they find alien-like creatures called "Stalkers" rise up from the craters. Slowly, 1 by 1, the Stalkers "take out" the crew. I won't give it all away, that's just boring. The other one is about a science fair project robot that gets granted the joy of life when struck by lightning, but people are starting to get the urge to take apart the robot to find it's source of artificial intelligence. The robot and the boy need to get a plan fast.