"Animals You'd Wish Didn't Exist" [or, 'AYWDE'] is Nilly's favorite book, which he claims was largely written by his grandfather. It first appeared in book 1, in chapter 2. The book is just a giant guide to... animals you'd wish didn't exist! Some of the animals in this book include-

1. Giant anacondas

2. Conglose tse tse elephants

3. Seven legged Peruvian sucking spiders [like Perry]

4. Moon chameleons