The Wizardry Consulted

This book maintains the situation and characters of the three preceding books in the series, but unfortunately the story is dull: nothing much happens. The hero spends much of the book rather aimlessly wondering how to cope with his situation, and perhaps the author had the same problem.

If you liked the other books and can't resist reading more, then go ahead, this one won't hurt you; but don't expect much.

The author evidently decided in advance that the theme of this particular book would be making fun of management consultants (hence the title). I wasn't much amused, but it might suit your sense of humour for all I know.

One new regular character is introduced: Malkin persists into the next book. She's OK, I quite like her, although (as with the others) there isn't a lot of depth to her.