She opened a wide manila folder and took out a white printed legal form.

“You own the card, Nora, which means you control the switch,” Sarah said, sliding the document across the mahogany desk toward me.

“What does this form do?” I asked.

“It’s a formal, sworn revocation of secondary user authority,” Sarah said, pointing to a blank line at the bottom.

“The moment you sign it, I fax it straight to the bank’s fraud compliance supervisor in Des Moines.”

“Does Mark get an automatic notice in the mail?” I asked.