Spooksville

Spooksville is having 15 series of books, I read the last one named ' Invasion of the No - ones

This book is about the ball of light, it seemed harmless at first, but later when it zapped to Adam the creature took over his body. Adam was kind before the ball of light zapped him. Worse thing was, the ball of light were slowly moving to the town nothing can stop them. It started making all humans into a strange alien creature. 

Tira Jones had a long black hair, her eyes were blue, she was short, she was a cutey.
She beacame immortal after the ball of light zapped her.

Christopher Pike (author)
Christopher Pike was born in November 12, 1955. He is an Amarican author.