Are there difficulty rankings for each room? I'm looking at bringing two older adult newbies and my 10 yr old son. We were interested in the Wizard of Oz and the Walking Dead rooms but I don't want to overwhelm them with anything too hard.

There is strength in numbers for sure. The wizard of oz was great for us. We had ages 10-70 and everyone had a great time.

It would be worth the money if you do either of them.

Not gonna lie, the wizard of oz room was a little tough. If it weren't for a good "experienced" couple in the group, we probably wouldn't have made it out. Don't get me wrong, it was A LOT of fun but challenging. My wife and I have done plenty of rooms over the years and this is probably top 5 as for as difficulty but also top 5 for most fun. Just my opinion though.