'As you can see, knowledge is e-e-everything. You have to r-r-read and l-l-learn as much as possible about each creature. Otherwise you can e-e-end up like the v-v-viper. Like A-A-Alexander. And in real life you may no longer have a second ch-ch-chance."

The professor went to smell some flowers, but not before giving the children a task to do.

'Read as carefully as possible about the f-f-f-fire mouse. And read and re-re-read, until you remember as much about him as p-p-possible. ...