How to get Poppy???

Okay, I've been busting MY BALLS ever since I heard that one of the developers made their deceased eldery dog a character in game, and I haven't found her. I've gone through darkwoods so many times, I could probably beat it with my eyes closed. I got the form by beating Leshy, and I was wondering if that ruined my chances of getting her? I want to get an actual Poppy and save her.