Mardla suspects Bram Vos, the curator. The painting is insured, so he's going to get his money if it goes missing. Then there's Luke Peterson, one of the employees who helped move the painting three days ago when it was brought to the gallery. It's been missing since then. So what happened? Did Peterson leave on his own or was Peterson taken against his will? Do you have any information that would help us solve this mystery? Please email emma.glanfield@mailonline.co.uk.