What I loved: It is so great that this brings some aspects of Inuktitut culture with it. I loved hearing new words and learning a little bit about a different culture. Although most are customs we all share around Halloween, the tunnaat and some of the foods may be new to readers. The illustrations are really fun with lots of color and good depictions of the writing.
What left me wanting more: The tunnaat as shadowy figures coming at night in and out of houses when you are sleeping may be a bit scary for young/sensitive readers. I think older picture book readers would likely not find this scary, but it is worth mentioning. I also would have loved to see more about the culture, but I know it helps children connect with things they are also familiar.
Final verdict: WHEN PUMPKINS FLY is a lightly spooky picture book that introduces some aspects of Inuktitut culture around the fun of Halloween.