Rabbit has come up with what he believes to be his best invention yet --- a Insta-Go-Grow potion for his precious plants. At first it doesn't seem to work, but when some ends up on Darby, she soon grows to the size of a giant. At first, Darby enjoys her new size and finding it helping her when it comes to Super Sleuth cases. It has several drawbacks, however, including the fact that she can't wear her cap. Darby soon finds herself less-than-enamored with her new height.
