I've tried to read the Sharing Knife three times, and all three times I've bounced off it less than a quarter into the third book. It just ... completely looses my interest. Very frustrating. (The more so since last week I just bounded through catching up on Penric & Desdemona.)

In addition to being weird about Scotland, Five Red Herrings doesn't play fair as a well-constructed mystery -- as philomytha notes.