We offer some possible scenarios to explain why Lily is in the sanatorium

By Tim Stack
Updated December 05, 2008 at 05:00 AM EST

Sure, we know Kelly Rutherford’s Lily was put in a sanatorium on Gossip Girl, but the reason is still secret. Possibilities for Lily’s past?

· Lily van der Woodsen revealed to have love child with rocker Rufus Humnphrey — gives it up for adoption!

· Lily van der Woodsen-Bass goes insane after staring too long at her Louis Vuitton scarf.

· …We hear Lily may have some skeletons in her closet, next to the Chanel. Could she have killed a groupie infatuated with Rufus? Details to come…