Kate's cottage is the central hub for her narrative. Inside, you'll find evidence of her scientific work: notes, diagrams, and equipment. Interact with everything you can, especially radios and phones, as these often contain her recorded observations and conversations. The memories here will often show Kate grappling with the data and trying to make sense of the inexplicable phenomena.
Near her cottage, you'll discover an outdoor research area, possibly with some scientific instruments or a makeshift lab. This area is vital for understanding her theories about the 'Pattern' and its origins. The narrative here delves into the more abstract and theoretical aspects of the Rapture, contrasting with the more personal stories of other characters.