You Promised Her?

Karen Daly bit her lips hard to distract her from her emotional pain. "Karen?" Kevin Kyle held her trembling shoulder and asked, "What happened? Tell me, I can handle it." "Why am I so useless? Why can't I even do just one thing right? Why can't I help you when you are hurt?" Karen Daly was beating herself up for failing at this task. Kevin Kyle held Karen Daly in his arms and patted her back gently. He comforted her and said, "Karen, don't worry. Share your concerns with me." Perhaps they had misunderstood each other earlier. Karen Daly asked again tearfully, "Kevin, is there any other meaning from the letters on the mug?" Kevin Kyle said, "Describe it to me again. I'll use another method to see if I can interpret another meaning." Substitution cipher was one of the methods to decipher codes in cryptography. There were also several types for substitution cipher which consist of simple substitution, homophonic substitution, polygram substitution and so on. When he listened to Karen Dal