The Man with the Golden Tongue

"Don't touch - it's poisonous," Jess Ponder, the Schools' Secret Agency 'Double A-Star' agent, tells schoolmate and master of the forged sick-note, Leo Sleepwell, when he sees a trail of dried, gold saliva on the seal of an envelope. The letter it contained was sent to Jess by the notorious Nine-carat, aka 'The Man with the Golden Tongue'.