Deep Valley Book Festival hosts first spring book fair Deep Valley Book Festival hosts first spring book fair By Marissa Voss | February 11, 2021 at 11:55 AM CST - Updated February 11 at 6:47 PM MANKATO, Minn. (KEYC) â After many successful years hosting their fall book festival, they are expanding to a Spring event The âcabin feverâ virtual event will be held on the first weekend of March. They will have planned discussions, panels, writing workshops and keynote speaker and Minnesota author Margi Preus, who will read her newest book The Littlest Voyageur to the virtual crowd. âThe energy that comes out of the discussions, it is just so fun. I love writing, I love books, I am a writer, I am a reader. To be able to talk with people about this thing that is really fun to me and really important to me,â said Rachel Hanel, Deep Valley Book Festival planning committee member.