I think this comment from me was in response to the above:

Fair warning: the second and third book are very much part one and two of a new chapter in the story. While Sabriel feels finished at the end the adventure is only just started in Lirael and I was very pleased I had the next book to continue on with straight-away. If you have a problem with cliff-hangers (or are just naturally impatient like me) you might want to make sure you get both of them...

and jenn_calaelen said:

Thanks! Cliffhangers are evil (and to be avoided if possible ;) )