The Ishtar Sink region looms large in our surviving knowledge of Venus. Guardians come hunting the ruins of the legendary Ishtar Collective, a sprawling Golden Age scientific project. But the ancient ruins that brought the Collective to the Sink have awakened again.

We aren't the only ones interested in the Collective. The Fallen House of Winter has hurled its assets into pillaging the ruins, hunting for some advantage - whether from the Golden Age, or forgotten times beyond. The House of Winter's presence includes constant Skiff overflights in support of ground teams and hints of an improvised command post or staging area in the volcanic Cinders.

The situation is degrading into a race against time. We must claim the Collective's ruins for our own - and hope they will warn us what other threats now rise from Venus' acid seas and ancient stone.