have anyone read God of Clocks yet, I got lost at end. Spoil alert

I enjoyed the first two books, Scar Night and Iron Angel. This was good too but I got confused in the end when Rachel started popping up with her otherselfs. A intresting concept but still confusing. And how did Canival go from having no wings to saving everyone with wings. Anyone?
You can just pm me if so not to give it away.
Nick