This was the painting that sold for millions. I watched as the porters wrapped it up and carried it from the gallery to the awaiting truck.

The new owner transferred cash from his account, smiling, probably thanking God for his luck. I watched him shaking hands with everyone, swigging the curtesty glass of expensive champagne, posing for photos.

John Masters, the gallery owner, smug and insincere triumphant for once in his sorry life.

Not for long.

He paid me peanuts as a commission for this painting, unknown I had used special paint which would melt in due course and reveal a message.

This painting has been sold to you by a tight bastard.