Well, this is random but what if Akasha asked SmartAlekRJ for help? They're both at Golemus Golemicarum and SmartAlekRJ is now the dragon master, the tiny people will do whatever he says, he could ask them for a way to get into that pyramids (they probably don't know, but hey, there's a huge library down there) AND if there's any kind of pyramid underground, if there is they would probably know it. And SmartAlekRJ could always order them to make a "human" ladder that would lead into the floating pyramids xD