Yes, @aspen_musing is organizing it and has invited all established Castle writers, new writers and aspiring writers to enter the CASTLE FICATHON
She has created an account on ff.net for this occasion and you can find the rules, info and everything you need about it in here
So, you have no excuse to "be bored" and feel Castle withdrawal hitting you all the time (I know, i know, its impossible not to feel any). You can either write a story or read the stories, or both! We readers are guaranteed to have weekly updates so we don´t add to the angst (some of the stories are "angsty", some are fluff and some are mixed.
Join her on this summer hiatus effort and support our Castle writers in these times of "h" ( i´ve been told apparently I can`t even say the "h" word anymore)
And, to make this a personal challenge, I have offered to make cover art for everyone interested entering the ficathon, plus a personalized certificate for all of the writers who complete the ficathon challenge.