Step Eleven: Head back to Maya's Retreat, following the quest marker, to start the 'What Remains' Exotic quest. You'll need a free Heavy slot in your inventory to hold the passkey.
Step Ten: Fast travel back to Striders' Gate and speak with Nimbus to pick up Rohan's Passkey. Follow the quest marker throughout the ship to find the Seed of SIlver Wings, bracing for Shadow Legion attacks along the way. This is the large ship you can see in Ahimsa Park that you go through during the main story. Step Nine: Head inside Calus' Typhon Imperator to find a Seed of Silver Wings.
