Down to a Sunless Sea was the second Merovingian Mission in Episode 9.2.

Mission Transcripts

Flood: The intruder made some sort of remark to the general that really seems to have gotten under the General's waterproof beret. The General is both an impatient and a largely resourceless individual, and won't stop bothering me about helping him follow up on this imagined slight. I have more important things to be doing than messaging the General's bruised feelings, so I'm sending you to look into it.

Don't clock too many hours on this one, {redpill_name}; the General isn't worth it.

search Machine records for references to Stalingrad from that location. I suppose you'll want to find a computer or something. Scanner's picking up what look to be Machine programs inside.

Operator: Damn! They must have detected the trace. All I got was the network address of the next hub. I can probably track it down, given a little time.

Operator: Goals for this area are complete. Find the nearest exit quickly!

Kaplan: Pleasure working with you sah!

[Mission completed]