Questions like "what's the context here without clicking on a 15-minute video, because a Queen with so many large enough shafts to her chamber that they have to be named by compass points sounds like extremely niche porn"?
In Egypt there is the Great Pyramid. It is very old and has numerous controversial architectural and geometric features. Some of these features have recently come to light which have not been entirely understood or explained. It is a matter of ongoing interest mainly to Egyptologists and others fascinated by its many curiosities. However, occasionally new discoveries are made by authorized researchers employing technical means. The so-called "Queen's Chamber" shafts were opened up and explored by robotic cameras beginning in the 1990's. Now it appears another newly revealed shaft seems to be connecting the northern shaft to another unknown opening somewhere on the pyramid. Ancient history, ancient mystery.