馬力是一名13歲少年，某天，他的父母突然消失，他因此被送去福利院。 兩個月後，一個家庭收養了他，他不得不跟著來到一個杳無人煙的地方。
自從加入這個五口之家後，奇怪的事接二連三發生。在一個偶然的情況下，他發現自己那對平凡的父母其實是赫赫有名的天文學家及地質學家，而收養他的家庭則來自外太空，因為居住的馬爾星爆炸，他們乘坐飛行器來到地球，目的是希望馬力的父親能幫他們找到另一個宜居的星球，同時試著阻止馬爾星爆炸後所產生的核輻射影響到地球的生態環境。
最終，馬力的父母有没有安全歸來？能解救地球的地球軸心又是否被找到？
這是B杜一系列懸疑探險小說中的第一部，內容曲折離奇、險象環生，讀完像經歷了一場奇妙之旅，適合各個年齡層的讀者閱讀。
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.
