K.L. Armstrong and M.A. Marr had been friends for several years and found themselves spending hours talking about mythology and monsters. With that shared interest, 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 11- to 13-year-old sons, they knew they had to write the Blackwell Pages.