LOVED IT! Wow, I can't believe how good it was...
OK. Stopping the raving now.
First off, this time didn't deal with 'Oh no, will we get Liam back?!'. The main issues were dealing with ripping open the space time ... thing... and letting the 'creatures', Seekers, escape into the real world. It also dealt with 'Why don't we leave history like this?' as the history that ripples through seems to be a happy simpler time.
It would be very tempting to alter the world I suppose. Especially if you've seen it in a few years time, like Sal has.
P.S Well done Mr Scarrow, for writing yourself into the book and making me freak out xD
P.P.S I know it's a terrible review.