To gain access to the alchemists' quarter, Lawrence asks Batos for a password to meet Dianna. Upon his arrival, Lawrence is told that the pyrite has already been sold on credit. Dianna, however, agrees to sell Lawrence pyrite instead and tells him that she will handle negotiations and contact him upon their completion. The next morning, Lawrence goes to the exchange with Amati and receives fourteen gold coins, equivalent to 300 silver coins, in accordance with their deal. The price of pyrite continues rising, worrying Lawrence.

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