The Duchess has taken over Wonderland.
Alice is still trying to wrap her head around it all-Chase has betrayed them and was working for the Duchess the entire time. Not only did Alice's best friend disappear in front of her eyes, but all of Wonderland has now been rewritten. Only she and Malcolm escaped by running to the safety(?) of the Dark Forest. Now they needed to work harder than ever to restore Wonderland, and revive Kate, if that is even possible.
This is the conclusion of Wonderland Chronicles.