As of midnight last night, the server that hosted both the alpha and beta testing of Flagship Studios' Mythos was taken offline.
Hellgate Guru has the final announcement from Diane “Tiggs” Migliaccio:
Travelers of Uld,
We, the ancient elders of Uld are issuing this warning to all citizens and travelers. Hurry! The great darkness that once plagued Uld is returning. Everyone is ordered to close down their shops and prepare. We predict the when night is at its peak the darkness will arrive. The ancient elders of Uld will be leaving immediately in order to preserve the lore of this wonderful world. Citizens please prepare thyself and know that the elders will be back from their travels some day.
From the team:
We regretfully announce that on Friday, July 18, 2008 at 11:59 CST the world of Uld known as Mythos will be going on hiatus. On behalf of all of the Devs and Community team we want to say thank you to everyone for their support and assistance with Mythos Alpha and Beta testing and we will see you soon.
The Mythos Team
As well as a goodbye from executive producer Max Schaefer:
They say it’s not so much the destination as it is the journey that’s important. We’re really hoping that’s the case around here these days. I can’t really believe I’m writing a post like this, but here we are faced with the unpleasant task of taking a hiatus from this crazy project. Unlike most games, Mythos has been running with our testing community for almost its whole life. I really feel like we’ve all done this together. And despite this bump in the road, I think we’ve succeeded wildly. This is undoubtedly the best game community I’ve ever seen. This is the best game development team in the world, in both Seattle and San Francisco. The things we’ve learned here, and with you all, will be with us forever.
PC gaming is changing, and I believe we’ve had a sneak preview with Mythos. With any luck, this will not be a long hiatus, and Mythos will be back. But even if it’s not, and even if we all move on, we’ve taken a lot of important steps forward. Game development is in many ways a continuum, and we all build on what came before. I know neither Travis, the great Mythos dev team, nor myself are planning on doing anything but make games into the future. So no matter what, we’ll pick up where we left off and you’ll be hearing from us shortly. We may not be the best business people on the planet , but we know how to make games. And once the dust settles here, that’s what we hope to get right back to doing as soon as possible. So until then, aux revoir Mythos community! It’s truly been a privilege to have experienced this with you.
Max Schaefer, your humble executive producer
And, with that, an excellent little massively multiplayer action RPG vanishes.
Mythos Server Taken Offline 
Linear Mode
