The Mysterious Dog in the West Incursion Zone sits on a high rooftop in the northwest corner of the map, west of the Parking Garage where you meet Jesse Fault. Speak with it, bring back its plush toy, and you start the “Notes: Every Dog Has Her Day” side quest while earning a small reward. Getting up to the dog is the only real obstacle, and that depends on one ability.
Quick answer: Use the Gravity Anomaly wall-run ability from Jesse Fault to reach the rooftop dog north of the House of Mirrors, grab the blue plush toy from the neighboring rooftop’s AC unit, and drop it in the dog’s bed.
What you need before starting
You cannot reach this dog without the Gravity Anomaly ability, which lets you run up marked vertical surfaces. You unlock it from Jesse Fault in the Parking Lot of the West Incursion Zone. Complete that step first, then head to the rooftops around the House of Mirrors.
Once you have the ability, the entire task takes only a few minutes. The dog whimpers as you get close, which helps you pin down its exact position on the rooftop.
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Where to find the toy and return it
The toy is a blue plush dinosaur sitting on top of an air conditioning unit on the rooftop next door. It is close by, so the trickiest part is crossing over and finding a route back while carrying it.

While holding the toy you cannot use zip-style traversal, but you can still vault ledges and use your gravity-shift ability, so follow the scaffolding route back rather than trying to fast-travel or zip up.
How to confirm the quest started
After dropping the toy in the bed, talk to the dog one more time with L1. Dylan says the dog got what it wanted, and the game awards +1 Undefined Reading and displays “NEW QUEST NOTES: EVERY DOG HAS HER DAY.” That on-screen prompt is your confirmation the encounter counted.
This is one of seven Mysterious Dog encounters across Manhattan. Returning every dog’s toy completes the full side story and unlocks the Dog’s Best Friend trophy, so mark this West Incursion Zone dog off your list and move on to the next region.






