Two cousins are thrust into a parallel reality when they travel
through time and fire in the first book of the alternative history
Fireball Trilogy, from critically acclaimed Tripods author John
Christopher.
Simon and his cousin Brad hadn't wanted to spend the summer together.
And the quiet London suburb where Simon lived was the last place they
expected anything unusual to happen.
Then the fireball came.
The huge whirling ball of light was like nothing the boys had ever seen
before--and they felt compelled to investigate.
They awoke in a world where everything had changed. It's still
England...but an England terrifyingly different from the one they had
left behind. They passed through the fireball, and now they will have to
learn to survive in the fascinatingly strange world on the other side...