Thorin rescues and brings one of the most unlikely people on his mission to reclaim Arebor. His nephews are in shock that he would bring an elf, especially the daughter of Thranduil, the elf that causes Thorin's hatred to the elves. Fili ends up falling for her, and when she figures out they both feel the same, she worried about how her brother Legolas will take it. If you wish to discover how this interracial relationship ends, put yourself in the minds of Lily Theresa and Fili Durin.