|“|| Without definite intention he was asking the PRESENCE for access to a dim, fantastic world whose five multi-coloured suns, alien constellations, dizzy black crags, clawed, tapir-snouted denizens, bizarre metal towers, unexplained tunnels, and cryptical floating cylinders had intruded again and again upon his slumbers...|
He was, as many a night before, walking amidst throngs of clawed, snouted beings through the streets of a labyrinth of inexplicably fashioned metal under a blaze of diverse solar colour; and as he looked down he saw that his body was like those of the others—rugose, partly squamous, and curiously articulated in a fashion mainly insect-like yet not without a caricaturish resemblance to the human outline. The Silver Key was still in his grasp—though held by a noxious-looking claw.
|~ H.P. Lovecraft & E. Hoffman Price , "Through the Gates Of the Silver Key"|
The Yaddithians are a race of powerful wizards and brilliant scientists. Though their world was ravaged by the Dholes, some of them escaped to other worlds, dimensions, or times. One of their inventions was a device known as "light-wave envelopes", which were machines that could transport passengers across time and space.