If curiosity killed the cat, what will it do to a rat? Come along with Ratto as he takes us on his escapades into 1850¿s-era London and beyond, learning about his favorite subject: humans. When two homeless boys move into Ratto¿s shed, he¿s appalled by their condition. Do humans really let orphan children live on the streets with no hope, while rats take care of their own? In his pursuit to understand Man, Ratto learns that people can be kind and caring as well as selfish and foolish. Along the way, you¿ll see glimpses of what life was like 160 years ago and perhaps be astonished at humans¿ behavior yourself!