The time axis

马力是一名13岁少年，某天，他的父母突然消失，他因此被送去福利院。两个月后，一个家庭收养了他，他不得不跟着来到一个杳无人烟的地方。

自从加入这个五口之家后，奇怪的事接二连三发生。在一个偶然的情况下，他发现自己那对平凡的父母其实是赫赫有名的天文学家及地质学家，而收养他的家庭则来自外太空，因为居住的马尔星爆炸，他们乘坐飞行器来到地球，目的是希望马力的父亲能帮他们找到另一个宜居的星球，同时试着阻止马尔星爆炸后所产生的核辐射影响到地球的生态环境。

最终，马力的父母有没有安全归来？能解救地球的地球轴心又是否被找到？

这是B杜一系列悬疑探险小说中的第一部，内容曲折离奇、险象环生，读完像经历了一场奇妙之旅，适合各个年龄层的读者阅读。

One day, the parents of 13-year-old Ma Li mysteriously disappeared and so he had to be sent away to a welfare centre for minors. Two months later, he was adopted, then a series of strange events began. First, he discovered his real parents were not just ordinary folk, but were both 'universally' famous scientists: his father in astronomy and his mother in geology. Next, and more bizarrely, that the family who adopted him had arrived from outer space. 

Just prior to the explosion of planet Ma Er, his new, alien parents and their children had miraculously succeeded in escaping the devastation by spacecraft, which eventually reached Earth. 

The alien's hope was that Ma Li's father could help them discover another livable planet. Their other ambition was that they might also try to prevent the nuclear radiation produced on planet Ma Er from affecting the Earth.

Will Ma Li reunite with his real parents? Has the Time Axis, which can save Earth, been found?

Suitable for all ages, this is the first in a series of adventure novels by B Du.