im not sure at all,but i think it does because have wewe ever heard of an mwandishi who lets wewe have a sneak peek at the inayofuata book, then they never write it? if wewe go to the infernal devices website it shows another book called "Clockwork Princess". i think even though it doesnt really onyesha the book it does exist somewhere.i mean who gives previews of vitabu and then retires? its just so sad that i cant find it though. i would upendo to see if tessa and jem do get married au jem falls for wills sister.and if jem does falls for Cecile, than will tessa and will fall for each other?because if they(tessa and will)do get together than will jace herondale(mortal instruments)be their great great great grandson?