reiella said:Quick, mostly off topic, question/comment about Tesseracts/Hypercubes.
Does anyone here know who formalized the theory/definition for them?
DMScott said:For characteristics of tesseracts in fiction, I think they might have started with Robert Heinlein (And he Built a Crooked House, 1940).

(Dungeons & Dragons)
Rulebook featuring "high magic" options, including a host of new spells.