Wilf the Mighty Worrier Saves the World : Book 1 by Georgia Pritchett

And now the most evil man in the world has moved in next door... Things Wilf was worried about before:1. Stuffed animals.

2. Peanut Butter. 3.

Creepy crawlies that have waggly feeler things instead of eyes. Things Wilf is worried about now:4. The most evil man in the world.