Instruct: Classify the given Amazon review as either positive or negative.
Query: Perhaps his best?

Past Due was a lot of fun to read...the plot contained the important twists and turns, but did not feel as desperate as some of the other stories--indeed, Victor was more in control. It was fun to see McDeiss, Larry, Skink again. Where was Morris? I love Morris. I miss Morris. Anyway, the real strength of this story was the way Victor continued to come to terms with himself. And his past. Lashner is to praised for allowing Victor to mature and grow. A very special thing.