Empusae / Klankdal

Some math (no meth!) before starting the review: one plus one might be more than two. My sons do not agree, since their teacher tried to convince them that one plus one simply makes two, always, no exception. My autistic half totally agrees. 1 + 1 = 2. I checked it on the web, and indeed, this formula leaves no room for conflict or friction. But still, my stubborn part might be convinced of the opposite.