Mwqa-mqbrh-alfysbwk-qiwdz

Her younger brother, playing nearby, laughed. “That sounds like nonsense words!”

She stepped back. “What if it’s a known key?” She typed the string into her computer’s frequency analyzer. It suggested a with the key “help.” She tried it: mwqa-mqbrh-alfysbwk-qiwdz

But Layla heard something else. She removed the first letter of each group: wqa – qbrh – lfysbwk – iwdz Still no. Her younger brother, playing nearby, laughed