Someone had suggested that when you feel you have the solution, instead of just opening the solution (and therefore ending the game whether you're right or wrong), to go to the website to step through the hints. If you ultimately have the correct solution, you will get the affirmation through the hints. But, if you come across a hint that points to something you may have missed and makes you unsure about your theories, you have the opportunity to re-explore the clues/evidence. It would make for a better experience than just opening the envelope, finding out you're wrong and then that's it. I'm not sure how difficult Mystery at Magnolia Gardens is compared to the other Hunt a Killer Games- it may be quite easy- but this "check your answer" method by reviewing hints could be used for other games in the series.
I need to say I have become a huge Hunt A Killer Fan. We stared with death at a dive bar which I found at my local target. Then we played The Agatha Christy one which we got off Amazon. I know alot of people don't like Amazon but the have alot of the boxes and a few of the prior series. I am subscribed and we just finished Mallory Rock. The level of detail that goes in these boxes is impressive. The subscription includes online content as well.
HAK is great. I've been a fan since their beginning. Some of their first cases were pretty difficult for most. They have gotten better. Some are pretty straight forward. My house looks like an episode of CSI with their 6 part games. I've played a lot. Hak and deadbolt are the best imo.