K.L. Armstrong & M.A. Marr had been friends for several years and found themselves spending hours talking about mythology and monsters. One sleepy morning, they realized that M.A.'s second last name is Norwegian. (The similarity between that name and "Midgard Serpent" is totally coincidental.) With that link, in addition to K.L.'s love for tackling creatures in video games when not writing (and sometimes when she's supposed to be writing), their monster and myth fixation, and the books they read with their eleven- to thirteen-year-old sons, they knew they had to write the Blackwell Pages.