Winter into Summer was originally published in the revived Farago’s Wainscot. It can be read in two forms: either online, or in print.
If you’d like to read the story online, you can do so here.
Or, if you’ve fallen in love with it, and just need to have a hard copy NOW, you can purchase the Farago’s Wainscot collection here. (Look for the pug in a jacket.)