A Series Appears!
An evil witch has come to the land of Calculeria... and she has used the local fear of calculus to terrorize the entire land. She has created infinite sums - or series - and made them come to life!
The series can be contained by taking away their power, which is done by solving them (determining if they converge or diverge).
Guide local adventurer Katie as she learns about these mysterious series and takes them all down!