I.P. Mizzaz 
The Beginning Of Everything [EPUB ebook] 

10-year-old Oliver and his 7-year-old little sister are curious kids. Oliver wonders about space, stars, planets, and the existence of the universe.
One day, on their way home from school, they decide to stop by the library. It’s in that library that they encounter a magical dragon statue that comes to life and takes them on an adventure to the beginning of the universe.
Join Oliver and Amelia as they journey to the beginning of time to learn about the Big Bang and the beginning of the Solar system.