Lexi has developed a serum that may hold off the symptoms of neural decay that a number of scavengers are experiencing. All she needs is the perfect test subject.
This is the follow-up from The Mind of An Exile and starts some time after its completion, when Ryder next comes near the Paradise. Lexi believes the neural paths in the brains of the affected scavengers somehow was altered during cryostasis. She has created a serum to help them.
Go inside the Paradise to pick up Lexi's serum. Then scan the scavengers to find a good test candidate. When you found one, Lexi says that you have to ask for the scavenger's permission to administer the serum. It will take some persuasion before he agrees.
Lexi says she will watch the progress of the scavenger, and that she will be back when she has found something.
The mission completes.