Work Text:
The house was brimming over with brittle silence.
Molly's eyes shone with tears, but she bit her lip and hugged Percy.
Arthur was stonefaced; his sons glowered.
Ginny elbowed George. The twins' eyes widened. "Bloody hell!"
Percy's shaking hands, as they reached for his wand, were spelling "danger" and "run" in a sign-language the Weasley children had invented in childhood.
Molly's hand flew to her mouth. Tears flowed down Percy's face. He was losing his struggle. The wand slowly raised above his head.
Percy signed I-M--and tried to lower his arm.
They apparated seconds before Percy conjured the Mark.