Check out the new Featured Mystery, Dead before Dessert, written by AmazingAmanda253. This one is very fun, with a tongue-in-cheek delivery. It's probably not the most challenging mystery we've ever published, but I think it's a nice change from the more serious tone most of our scripted mysteries are written in.
This one is also set in London, so make the trip if you've got the time. We'll try to get up a new mystery in one of the other cities soon (anybody got an idea for a mystery set in either Shanghai or Cairo?).