
As a concept, "Mind Blast!" has been hanging around in my head for a couple of years now. The basic premise - a psychic disaster on a colony world that causes personalities to be swapped - came from a Doctor Who game I worked on briefly. It never came out, but we had some fun levels planned for it.
In one, the Doctor comes across a Dalek whose mind has been swapped with the colony's cook: a teenage girl from England. The Dalek-girl escorts the Doctor through the burning colony, using her new body to help him past obstacles. When we saw the scripts for the upcoming series I discovered my idea was oddly close to one of the new episodes, so we ditched it. The idea stuck though, and I was pleased for the opportunity to adapt it to D&D. I now have an owlbear instead of a Dalek, but the basic premise remains the same!
If you get a chance to play the adventure, I'd love to hear how it worked out. Be sure to check out the pre-generated characters I made, and practice your owlbear impressions. You'll need them!