The Tower of Entropy

It was just another ordinary Saturday afternoon for Murdock and his "Raiders & Ruins" Tabletop RPG party. But when their GM, Erin, cancels the session with a cryptic text message, declaring that the world is ending, they think he's just being dramatic. However, they soon discover that their GM is not who he says he is, and their lives are forever changed by the appearance of a deadly haze of red mist that consumes the earth, a mysterious elf mage named Gwenivyr, and... a murderous demon lawyer?! Faced with the end of the world as they know it, Murdock and his R&R group are left with no other choice but to escape to the world of Astatria - the very setting of their GM's campaign.