The Emperor's Treasure: Story by Ulf Granberg and art by Jaime Vallvé. Cover art by Glenn Ford This Phantom story, The Emperor’s Treasure was first published by Semic Press in Fantomen 12/1981. Written by Ulf Granberg with artwork by Jaime Vallvé. This story has never been published previously by Frew. The Phantom finds himself on a treasure hunt in Corsica as a result of a social call he makes on an old college professor! This is no ordinary treasure and of course others are also in search of these priceless ancient artifacts. Enter bad girl, Madame Sauvage and her merry band of marauding henchmen. The Phantom finds himself out of his depth in this story!