Initially, Carmilla was supposed to be Lety’s nemesis, but as the series progressed, it was obvious that she would make a wonderful comic relief instead! So I removed her from the main cast as an antagonist and rewrote her part as a secondary but fun character. She’s decribed now as “With twice the size, twice the muscles, and twice the age, but only half the brains Lety has, Carmilla is a vampire who feeds on other bats”.