Tragiyahn was a female she-cat of the new-old Felidae breed that the mysterious Claudandus was bred in secret. She also murdered the cat Pascha and possibly the other cat to avoid that they covered her and brought messed his breeding program. According to the entry in his computer, Claudandus had created over the murdered Pascha, Tragiyahn was a case of a problem for him, as she when she got into heat, the whole area roamed and also repeatedly endangered breeding program.