[Not exactly plotted but tossed around thing for @deficd.]
Atreides! Atreides!
The air shuddered with the sound, waves crashing akin to those of the ocean on rocks a hundred feet below, the thunder that rumbled distantly above open water. A transparent dome arched over the span of the arena, a field in place to deflect the worst of the sun and the inevitable Caladan rain.
It made the packed earth crunch under her boots rather than splash and slip, kept the surface even despite the weather and the time between tournaments. Four times a year, Solstice and Equinox, the Games were held.
Once upon a time they had included bullfights, until the death of the previous Duke - now the beasts merely cropped the fields and the battles were between humans alone. Thera walked out with the other competitors, sword slung easily across her back, the shouts of the spectators ringing in her ears; the home crowd, of course, a ferocious welcome for other Houses visiting to take part.
"Ecaz!" She shouted in return, raising a defiant fist, but she doubted anyone outside the arena floor heard - she might work for House Atreides, but out here she was Ecazi first.