Vanishing Deck of cards

A true miracle of magic. 

The magician shows his audience a box of playing cards which he keeps inside a hard plastic protective casing. He opens the card box and removes one playing card, he replaces the card back inside the card box. He then takes the entire deck and places it inside the protective case. 

with a snap of the fingers the magicians turns over the protective case to show that the deck has completely vanished