User blog comment:Hyperborean/"The House of Hades" – official expectations blog/@comment-6951062-20130312053730/@comment-108.75.110.81-20130314234746

You guys are all wrong. The only answer that can satisfy all of your guys's evidence is that the underworld is infact a physical place. It is not 4th dimension stuff like that. The underworld is just a really really big. In the battle of the labyrinth someone says that it is exactly like a layer in te earths crust just like the labyrinth is. The underworld is just a layer that is lower than the labyrinth. That is whey percy can throw that pearl down in the 1st book and they can fly right up to the surface without going threw any special portals. Any one can go to the underworld if they had the power to dig miles beneath the surface. Some more proof is that odyseus made a portal by making music so lovely that the earth opened up and he could walk down to the underworld. It doesnt say that his music made a portal down to the underworld. Lasty, it would be a major coincidence that one of the few entrances to the underworld is right were arachne sets up her temple thing. You frickin nerds just want everything to be majical meanig without ever thinking it through. When typhon is taken down it would make more sense that the gods split an opening in the earth to bring him down to tarturis then make up a while bunch of rules that riordN never said anything about like gods can open up portals to tarturis or things like that. If the underworld was 4th dimension than why would it be called UNDERworld. Furthermore, why does charon need to use an elevator to go down, if it was a portal they would just arrive.