I am usually a purest when it comes to summer fruit pies, jams and such. One fruit and one fruit only! But in an effort to try new things and never miss out on something delicious. I tried mixing the remaining blackberries, blueberries and peaches I had leftover after a weekend of canning. And it was so good! So good in fact, I might just have been (somewhat) converted into a multiple fruit kind of gal, because I have been thinking about this pie ever since I made it!