Magic or Madness is a fantasy novel for young adults by Justine Larbalestier. First published in 2005, it is the first installment in the Magic or Madness trilogy. The novel won the 2007 Andre Norton Award for Young Adult Science Fiction and Fantasy.
Can we infer the following?
The fourth book in the series was the best.

Choose your answer from: - Yes. - It's impossible to say. - No.
The answer is:
It's impossible to say