After more than 33 centuries from his death, mysteris around the man the ancient Egyptian called Neb-Kheperu-Ra but today all of us call Tutankhamon never cease to impress.  Twelfth pharaoh of the 18th dynasty, his tomb (KV62) was discovered only November the fourth, 1922, when already it was believed that the Valley of the Kings it had already revealed all its wonders to the world. 

Tutankhamon, the only pharaoh tomb remained intact

As everyone knows, Tutankhamon's tombe was discovered untouched and with the full burial set, thanks to the fact to be at an only slightly lower level than Ramses VI's tomb (KV9, which is considered had been originally built for Ramses V, actually grandson of Ramses VI despite having preceded his uncle upon the throne), a pharaoh who ruled over 2 centuries after the young Tutankhamon, whose tomb should have been forgotte in the days when was carried out the one of Ramses VI. 

A smaller tomb hiding other graves? 

Things only a few people pay attention, except they had the opportunity to visit it personally, is that KV62 tomb is the smallest of the whole Valley of the Kings, much that its coffin fills almost fully the burial room.  In 2015 British egyptologist Nicholas Reeves, while photographed the tomb at ultra-high resolution, discovered that there was 90% chance of other secret rooms being behind North and West walls of the burial room (like Fanwave already told you) so Reeves postulated that in one of them Nefertiti queen's tomb might be. 

Tutankhamon's many family mysteries

Nefertiti was the great royal wife of the “heretic” pharaoh Akhenaton (at first known as Amenofi IV), whose mysteries Fanwave has already mentioned who according to the latest discoveries was not, as originally assumed, Tutankhamon's father (Tut's father probably was Smenkhara, step-brother and successor of Akhetaton).  Nefertiti in turn wouldn't be the mother of Tutankhamon (who would have been the “younger lady” whose mummy was discovered in the KV35, i.e. Amenhotep II's tomb), but the stepmother. 

Will it be Nefertiti's tomb? 

Be that as it may, since a second investigation carried out in March 2016 questioned Reeves theories and results, the Egyptian Ministry for antiquities has assigned to the Politecnico of Turin, a team of which, coordinated by Italian physicist Franco Porcelli, is already at work, a third study (to which gorgeous images of Kenneth Garrett made for National Geographic referred) to gain a definitive answer to the question: may Tutankhamon's tomb hide the one, still intact, of Nefertiti, the beautiful queen stepmother of Tutankhamon?  The expectations are great.