The Borrowers Ever After (fanfiction)

After the very satisfactory vengeance on Mr. and Mrs. Platter, the Clock family: Pod, Homily and Arrietty, could finally be assured of living the rest of their lives undisturbed by those awful human beans.
The only problem now was, to Arrietty, the disappearance of one angry young borrower, named Spiller. She upset him and that in turn upset her. More than she would have thought possible.

Set right after part five of The Borrowers by Mary Norton: The Borrowers Avenged.