Saint-14 needs your help synchronizing the Nessus Obelisk with the one in the Tower. First, you must reset the Nessus Obelisk to realign its connection.
Reset the Nessus Obelisk by completing a timelost weapon bounty from that obelisk.
"There are funny little birds on Nessus. Birds with no feathers. Or maybe they are bats. Either way, I would like to see them up close. Perhaps once this work is finished, you will help me catch one…" —Saint-14