The first promo images of Summer on episode 14 of Castle have been released by TVLine. The online magazine also has a few more infos on the episode itself. It’s titled The G.D.S. (Greatest Detective Society) and Summer’s character Kendall Frost is a member of it. We also know that the episode is going to air on Monday, March 7 on ABC. So I guess we all have a new mark in our calendar now. 🙂

Episode 14 of Castle, set in Los Angeles, reunites Nathan Fillion with Summer Glau, who guest-stars as a provocative P.I. that competes with Rick to solve a deadly mystery. The hour also features TV vet Gerald McRaney as the head of the legendary, secretive Greatest Detective Society (aka The G.D.S.), of which Glau is a member.

We should get a few more infos and a little sneak peek before Summer’s episode airs. So stay tuned 😉