Friends, help me find two fanfiction

​Friends, help me find two fanfiction books. 1) I only remember Nick and Judy's enemies coming to Nick's mother and kidnapping her. Maybe it was in guardian blue. I'm not sure.

2) From the plot that I remember, it follows that a killer appears, targeting interspecies couples, including Nick and Judy. The villainess was apparently a lioness with a bad past. She had a bat-like partner.

Also, apparently, there was an attack by a gazelle that was meeting with one of the tigers. And it looks like they were sent to investigate the case of the attack on the students.

This lioness also had a mother who adopted her, she was a zebra, but she was killed by a predator, and therefore this lioness became evil​