"No, you can' t. I'd look foolish if I let you have the phial. All you'd have to do would be to analyse it, and where should I be? I can give you all the information you want—temperatures, everything. He told me that before he died and I made a note of it, here!" He tapped his narrow forehead. Wertheimer was half convinced. He looked hungrily at the little bottle which contained all that he had sought for so many years. The crystals were agglomerate, he guessed. There would be half a dozen or more chemical elements that must be separated. "You have tried to sell to Madame Stahm?" "I won't deal with her." Dyson's voice was raised haughtily. "Eckhardt told me about her, and I promised him. I'm the sort of man that never breaks a promise. There's my price, Mr Wertheimer: I want sixty thous