Classic Return To Karazhan

Guys. Please help me. I spent over 10 hours being lost in this dungeon trying to get to The Menagerie to get to the rest of the bosses, like The Curator, Mana Devourer, ... I m on the Cubic Cynosure quest and I need Mana Focus from that serpent. How can I get to the other bosses from the last boss, Moroes? via /r/wow https://ift.tt/3o4jFku