I'm a huge fan of Laura Bow!
What I love is that I played all the way through Colonel's Bequest the first time, not realizing that there were layers of things going on that I was missing. By the time I got to the end, I knew I had to play it again. I found so many more clues and watched more suspicious behavior. But it wasn't until my fourth or fifth time through that I actually solved it all: bodies, culprit, and secret treasure.
However, Amon Ra was ridiculous. The amount of conversation that you have to slog through to get the information in your little black book... And then, at the end, the evidence never really does stack up. The story doesn't hold against the clues you've picked up.
If I have a recommendation for any new Laura Bow game, it would be to (1) make a credible series of murders and really plan out a logical solution, (2) THEN plan the red herrings.