Kidsday: 'The Silver Dream' review

I read "The Silver Dream: An InterWorld Novel," by Neil Gaiman, Michael Reaves and Mallory Reaves (Harper Teen). Joey Harker and the InterWorld members are Walkers, people who can pass between different dimensions. They use this power to keep peace throughout the different worlds and stop the rivalry between the Binary and the HEX, who both want to control each and every world. But then the mysterious Acacia Jones follows Joey and his team from a mission to stop the Binary. And as Joey tries to figure out who she is and why she has followed him, he also has to fight to maintain the peace.