A £5 note is borrowed from a spectator, the number noted, and then it is slipped into an empty envelope. Next, six further identical envelopes are introduced, each of which the performer claims contains a folded piece of paper.
The envelope containing the spectator's banknote is added to the other six and the spectator mixes them before dealing them out in any order on the table.
In a fair yet random way six envelopes are discarded, yet somehow the one remaining envelope contains the spectator's money! The financial risk, however, turns out to belong to the magician, not the spectator, as when the contents of all the discarded envelopes are taken out, each one is seen to contain a £20 note.
video 13:10