Quest Lv20 - Spirit Protector Quest

i got this quest at lvl 20 - from the Spirit Protector at the entrance to Mausoleum...

I was required to run back to night moon pool (although the details told me to go to crescent moon pool- no such place)... where i had to get 10 pieces/fragments of a torn up map... and then give it to Yao there...

Walk back to the Mausoleum to talk to the Spirit Protector... Go to Chang An book seller to get another item... and then BACK to night moon pool to visit Yao...

And then told to go BACK to the Spirit Protector at the Mausoleum... which he told me to go into the secret room and visit him there...