Grid needs work. 3 potential HDM rounds and one other is odd. Didn't accept Daemon's as an answer, ''names'' is a weak category, not enough to distinguish why Lyra is in that category..

I hate to be negative but I have to agree- I've read HDM backwards and even I was struggling because I expected the solutions to be more. Peoples names as a category looks like you've had a great idea for a couple of groups but then just made a leftover group; it's hard for people to make a link if there barely is one. I do however thank you so much for bringing HDM to the table as I am a big Pullman fan. Love your original idea so all I suggest is that you work on it for a while to make it twisty and turny! Good luck, I'll look forward to your next one!