Obtain Nalthor's Phlactory Instructions from Nalthor the Rimebinder in the Necrotic Wake.
We of the brokers place value on things that may seem strange to an outsider like yourself. Objects that are unusual or one-of-a-kind are things we may find more valuable than others. So let us make a deal, hm? Should you find yourself in possession of one such object, I will offer a trade for something you may find more valuable. I hear that the forces of Maldraxxus have made an attack on Bastion. Such things rarely happen without objects of power in tow, no?