Like many readers around the globe, Naomi Huffman is a huge fan of “Geek Love,” the novel about circus ‘freaks’ by the Portland author Katharine Dunn. Unlike other fans, Huffman is also an editor. Huffman went looking for more unpublished works by Dunn, who died in 2016. This fall Dunn’s novel “Toad,” written before “Geek Love,” will finally be published, after having been rejected by many publishers. We talk to Huffman about the process of editing Dunn’s draft posthumously, and what the new novel says about the famous writer.