Susan Sindberg

Pinkerton School is a boarding school with two teachers. One of the teachers, Mr. Soper, is nice, and the other, Ms. Macbeth, is evil and is constantly trying to enslave the children of the school. However, four of the students act as a secret organisation known as "The Invisible Network of Kids", or "I.N.K." for short. I.N.K's mission is to thwart all of Ms. Macbeth's evil plans.

Frog is a peaceful frog settled in the middle of a pond. Everything would be perfect... If it weren’t for the relentless Crazy Ferret, who will stop at nothing to devour her.