Another vote here for Nest/Dropcam. I actually bought the DropCam Pro before they were bought by Nest a couple of years ago. Super easy to set up, excellent video quality even in the dark. Another nice option is that for a reasonable fee they will save the last 7 days of video on their server, so you can review it. That came in handy a couple of years ago when I came home to find evidence that my senior Golden had been ill while I left her for just a few minutes, turns out she'd had a seizure. I was able to rewind and capture the video to send to my vet, extremely helpful.
I'm so sorry to hear that.
I hope everything turned out to be ok with her? The recording feature is awesome. Being able to keep an eye on your furry kids even when you're not home is so important!