A fax? A death fax? What a pile of bull. And The Letter? The "moving" letter in which he says deeply important things to the ER gang? I think that letter went to the wrong fax number, because this wasn't it. But a fax? How graceless. Obviously, it gets the handwritten letter there faster, but couldn't she call and tell them it was en route? Elizabeth could and should have sucked it up enough to realize that at least Susan, if not others, would be deeply affected by this, given the supposed depth of her caring for Mark. And I'm still disgusted that Mark wouldn't take the time -- before Hawaii, or during -- to call people and say more personal farewells. He probably knew he wasn't going to see any of them again, even if his condition hadn't suddenly turned for the worse. Ugh. Annoying people, all of them.

Back in the ER, Abby deflates a tad, Luka stares at the floor, and Susan tenses. Carter hands The Letter to Frank so that he can post the whole thing on the bulletin board at the front door. Slowly, the group disperses, resuming business as usual. Susan is the only one who remains motionless, staring off down the hall without focusing on anything. She isn't crying; she's just totally still. Slowly, she turns her head and watches Frank post the three pages -- two from Mark, one from Elizabeth -- on the corkboard. They flutter. We go to the credits wondering why Mark and Elizabeth appear to have exactly the same handwriting, and whether she forged his goodbye and faked his death, and whether they're actually living as con artists who fleece rich people on the Italian Riviera.

For the record, since some people say AE wasn't in their credits, he did show up in the ones I saw in L.A. Because, you know, his aura is in this episode even if his chrome dome is not.

Carter and Pratt treat Al, the same old man Mark treated in "Orion in the Sky." Al is blathering about being cold and needing "some of that breathing stuff," and Carter tries to examine him. Pratt reads off some stats and says that Al needs "a sally bolus." It's his way of saying "bolus of mornal saline," but he's doing a play-on-words with Sally Bowles, and...I'm only mentioning it because he does it again later, and I'm worried it'll become a thing with him next season. Carter, of course, doesn't know what the hell Pratt is talking about, and Pratt defines "sally bolus" for him as if Carter is eighty and not hip to the young people's lingo. Carter tells Pratt to work up Al, and Pratt insists that Al is a diabetic whose blood sugar is soaring and needs to be brought down. "Get Dr. Greene," Al moans. "He knows what to do." Carter smoothly says that Mark isn't there that day. "Then I'll come back later," Al insists stubbornly. Carter won't let him leave, but is gentle about it; cocky as hell, Pratt makes fun of Carter's requests for a thorough check of Al's chart, and bets him twenty dollars that Al's blood sugar levels are over four hundred. But Carter isn't paying attention -- he's just seen Dr. Kerry "Best in Show" Weaver enter and read The Letter. The knowledge that she's just getting the news hits him as if he's reliving the moment he read it. Pratt's voice snaps him back to reality. "Just...plug him in," Carter says of Al, walking away.