I had contacted the customer service team with some questions about the box and what ages would the box be suited for. They were very helpful and responded very quickly with the information I needed. My nieces love the box and were able to finish it almost all by themselves (very age-appropriate). The included parent guide is very helpful if they get stuck. The clues were so creative and varied that it didn't seem repetitive at all. The story was also very fun and engaging - my nieces couldn't wait to see what happened at the end. They're so excited for the next box and want to challenge themselves to do it all by themselves. I also think it's great that the company is run by parents who wanted a fun and hands-on activity for their kids to do and came up with Mystery Adventure Club. It's an amazing idea and we can't wait to see what they come up with next!