Beyond the door laid what appeared to be some sort of smugglers tunnel, it seemed to be perhaps crafted by Dwarves themselves.
A 7 letter answer is required!
Start at the top or bottom to place the chamber stones - they will only point towards one planet. Then, find the symbol on that piece, and find a piece that matches that symbol!
Remember - the symbols in the chamber are the symbols of the chambers that connect to it - matching symbols will not touch directly. Pay attention to the angles of the hallways to see what pieces could fit between to make one full path from beginning to end.
