Feeding Cassie

Initiating the quest
See also: Alone in the lab

If Cassie was already convinced that you're not her enemy, you can talk to her peacefully, and learn that she's very hungry. She may be encountered in the same warehouse she was in initially.

Finding food
Cassie desperately needs something to eat. And how one may feed the cat? By giving her fish, of course!

Cassie would accept almost any fish (Small Fish, Fish or Big Fish), but would reject Weird Fish. There are two ways to find a fish: catch it, or buy it at the market. Once you have what you need, just talk to Cassie and gift her fish. Her reaction would differ depending on what you give her, but overall outcome is the same.

Fishing
If player wishes to catch a fish by themselves, they may find free Fishing rod in the store in Abandoned Town. Fishing without Worms has high chance of failure (resulting in you either catching nothing, or catching some useless junk, and you would be only able to catch Small Fish at best. With Worms, chance is much higher, and you may catch bigger fishes.

If for whatever reason you failed to find Fishing rod in Abandoned Town (or sold it), it may be bought in New Ark, either Sports Flex or in Hardware R Us store.

Buying fish
After finding your way into New Ark Slums, you may buy any fish at the market to the south from the Sewers entrance.