" Elena ! Don't you dare slander me ! " Isabella snapped without a second thought , her body trembling , her eyes a mixture of guilt and fury . " I'm your sister , " she said . " If I am not of pure Silver Creek blood , then what are you ? " She glanced at Liam , a shadow of resentment and despair in her gaze . Then she hurried to Arthur , trying to defend herself . " Alpha , I had no idea Liam was impersonating Jacob , " she said , her voice trembling . " If anyone should be punished , punish him ! I knew nothing ! " Liam lifted his head in disbelief , his eyes swimming with the pain of betrayal . I let out a cold , bitter smile . In my previous life , I had learned too late that Liam had long harbored feelings for Isabella . He had deemed her gentle and beautiful , and though he had only met her a few times at pack gatherings , he had already become obsessed . After impersonating Jacob , he had sent her countless precious wolf relics . Yet the mate he had yearned for so deeply had abandoned him without mercy at the moment of crisis . Arthur staggered under the barrage of revelations , barely able to remain upright . Confused , he looked at me . " Elena ... Isabella is your full - blooded sister . How can you claim her bloodline is impure ? " I shook my head . " We share the same father , but different mothers . " My mother died from poor health shortly after giving birth to me . By the time I had memories , Isabella had already grown into my sister . My father taught me to obey my sister and protect the family . So , even though Isabella and I often clashed , I chose tolerance and patience . Until my previous life , when I was forced to lose my mate , I overheard Isabella speaking to herself while facing a portrait . " All these years , Father made me recognize Elena's mother , never giving you your due recognition . When I become Luna , I will declare to the pack that you are my true mother . " But before I could expose the truth , Liam had mercilessly executed me .