Alice Holden, shows up in Selby Flats to live with Kathy, Mark, and Robin. Right away, it is clear that Alice and Robin mix like water and oil. Alice is resentful of how spoiled Robin appears to be, while Robin can't stand having the older and more worldly Alice living in the same household. This leads to the introduction of Mike Bauer, the "cousin" of Robin, on whom Robin has a crush. While Mike does allow her some flirtations, the 13-year-old Mike quickly falls under the spell of the older Alice. Alice picks up on this, leading to a stalemate of constant tension between Robin, Mike, and Alice that would soon lead to a tragedy for the helpless Kathy. Kathy finds out she is pregnant, again, this time with Mark's child. In a ploy to get back at Robin and treat her like the spoiled brat she was, Alice took a kitchen chair and decided to screw out some of the bolts used to hold it together. Alice hopes it will fall apart when Robin sits in it—so Robin will be embarrassed and perhaps keep her spoiled bratty mouth shut. However, it is the pregnant Kathy who decides to use the chair to do some work in one of the kitchen cabinets. When Kathy stands on the chair, Alice's plan comes to fruition, but for the wrong victim. The chair gave way, and Kathy falls hard onto the kitchen floor. Kathy is taken to Cedars, where the doctors reveal that Kathy's injury is severe and has caused her to miscarry her and Mark's child. Kathy then develops an infection and is soon permanently restricted to a wheelchair as she develops paralysis. Alice is quickly sent packing back to Mark's parent's home, and then a year later to a school whose living arrangements are closer to where Mark lived with Robin. In March 1958, Kathy is killed when bicycling children accidentally push her wheelchair into oncoming traffic. Mark is left to raise the now SORASed to a teenager Robin on his own. Robin and Mike, as teenagers, soon become more seriously romantically involved. But Robin also becomes troublesome to Mark and Meta, trying to break up Meta's romance with Bruce and get her to marry Mark so Meta would become her stepmother. Robin also takes an instant disliking to Mark's new romantic involvement with housekeeper Ruth Jannings, a widow herself. On