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  ===''A Storm of Swords''===
  As ''A Storm of Swords'' (2000) begins, Jon has gained the trust of the wildlings by killing Qhorin, and marches with their host. He learns that Mance intends to breach the Wall and march south to escape the Others, crushing the Night's Watch if necessary. Jon finds himself torn between his growing love for Ygritte and his vows of celibacy. After climbing over The Wall with Ygritte and Tormund Giantsbane, Jon deserts them to warn the Watch of the impending attack. He helps defend Castle Black against the wildlings' initial attacks despite his lack of men and weapons. Ygritte is killed in the fighting, leaving Jon stricken. When the battle is won, Jon is arrested for desertion by Thorne and Janos Slynt, but is freed after convincing the judges of his loyalty. Still suspicious, Thorne orders that Jon be sent to kill Mance under the pretense of parley, but Jon's task is interrupted by the arrival of Stannis Baratheon's army.  Stannis offers to legitimize Jon and declare him Lord of Winterfell if he will align the North with Stannis. Though greatly tempted at the prospect of becoming a true Stark, Jon again chooses to remain loyal to his Night's Watch vows. With Sam's help, Jon is elected to the position of Lord Commander by acclamation.