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The story
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The Horton family eagerly welcomes Mark home from the Army, but he brings an unexpected guest from the bus: Natalie, the young woman he has mentioned only briefly. The greater surprise follows immediately. Mark and Natalie became engaged the previous weekend.
Liz has planned a long list of favorite activities to share with the older brother she has missed, including camping, water-skiing, and visits around Odyssey. Mark cheerfully includes Natalie in everything. When Natalie admits that water-skiing frightens her, he removes it from the plans. Liz feels that a stranger has taken over her reunion before it has begun.
Natalie cooks Belgian waffles and easily joins the family’s conversation. Liz, who has gone out to buy Mark’s favorite bagels, resents every sign that the others like her. She tells Whit that Natalie’s compliments are fake, her nervousness is bossiness, and her discomfort with skiing proves that she is changing Mark. Convinced that her brother is too much in love to recognize the danger, Liz decides to prevent the marriage.
While the three are rollerblading, Liz gets Natalie alone and invents a frightening version of Mark’s past. Mark once broke another boy’s nose after losing a game, but the incident happened before Liz was born and his anger problem has long since been addressed. Liz makes it sound current and dangerous, advising Natalie to leave the house whenever Mark loses his temper and to hide the conversation from him.
Natalie tells Mark what she has heard. He confronts Liz for turning ancient history into a lie intended to frighten his fiancée. Liz finally admits that she dislikes Natalie and does not want them to marry. She accuses Natalie of controlling Mark and taking away the brother she knows.
Their argument is interrupted by a military call. Mark’s unit has been ordered to active service in Rakistan, and he must report within twenty-four hours. There is no longer time for an ordinary visit, much less a family argument.
Natalie decides to stay with the Hortons instead of returning alone to her apartment. At the airport, Mark reassures her that the mission may be routine, but she knows he cannot promise to return safely. She asks him to call every day if possible, even if he can say only that he is all right. Mark asks both Natalie and Liz to pray for him.
News later reports rising casualties and an attack on the American camp where Mark is stationed. Communication stops for two days. Natalie waits beside the telephone and cries, while Liz insists that Natalie has not earned the right to grieve like a family member. To Liz, thirteen years as Mark’s sister should matter more than Natalie’s brief place in his life.
Whit helps Liz name the real fear beneath her anger: she believes Natalie is replacing her as Mark’s closest friend. Whit remembers fearing that the birth of his daughter, Jana, would divide the love he already felt for his son, Jerry. Instead, his love grew. If Mark truly loves both his sister and his future wife, his heart has room for both relationships.
When Natalie comes to Whit’s End to escape the silent telephone, Whit awkwardly tries to find interests the girls share. They both like chocolate ice cream and writing, but his efforts only make the distance between them more obvious. Liz then invites Natalie to help play a trick. Together they stage a wildly cruel argument until Whit is horrified, then burst out laughing. Their shared joke becomes the first easy moment between them.
Later, as they wait together, Natalie admits that she has also been afraid. Mark has told her about his camping trips, bicycle rides, water-skiing, and lifelong friendship with Liz. Natalie worries that she can never measure up and that Mark has no room for another best friend. Liz recognizes her own fear in Natalie’s words. They decide to give Mark more credit and trust that he can love them both.
The telephone finally rings. Mark is safe. Fighting has stopped after a new government took control, communications have been restored, and he may return home soon. Liz apologizes to Mark for misjudging Natalie and says she looks forward to the wedding. When Mark suggests a water-skiing trip for just the two of them, Liz asks to include Natalie so they can teach her together. Instead of guarding her place in Mark’s life, she makes room for the new sister who may join their family.

