Eragon

Today i read a book called Eragon i only read the first two chapters so im going to tell you what i know for now... 

The beggining is that alot of magic creaures are having a battle and there is this elf that has this kind of magic stone that has some power so they are fightibg over it when suddenly the elf runs away with it and uses magic toteleport it and then the elf got killed but the stone teleported to a boy named Eragon he is 15 years old and he finds the stone and decides to use the stone some how...  Thats all i read but i think that Eragon will try to learn how to use the stone