Amelia and Baby Bailey in Grey's Anatomy Season 10, Episode 21: "Change of Heart"
We knew that Derek's (Patrick Dempsey) sister Amelia (Caterina Scorsone) would be an unannounced guest of his in the April 24 installment of Grey's Anatomy — Season 10, Episode 21: "Change of Heart" — but recently released photos from the episode suggest she actually breaks into his and Meredith's (Ellen Pompeo) home to have a little aunt-nephew time with baby Bailey. Now that's a creepy house call!
Click through the gallery for the rest of the pics. Doesn't it look like Mer and Der are surprised to see Amelia in their house and playing with their kid? Couldn't she have given a brother a heads-up text message?
In any case, here's ABC's official synopsis for the episode.
Jackson [Jesse Williams] is given the daunting task of delivering disappointing news to the doctors. Meanwhile, Derek's [Patrick Dempsey] sister Amelia [Caterina Scorsone] drops by for a surprise visit, Richard [James Pickens Jr.] surprises Catherine [Debbie Allen] in Boston, and when Bailey [Chandra Wilson] gets frustrated by the slow pace of her research, she makes a risky decision.
Grey's Anatomy airs Thursdays at 9 p.m. ET on ABC.