[quote:1c351e464a="Kraygien"] It says the Medivh's Journal questline must be completed to summon the boss.  This questline apparently involves completing hSH and part of hSethekk as well.  Now I wanna do that questline![/quote:1c351e464a]

This questline is the one at Kara, where you have to go talk to the people in the library, get a drop off the shade, and a whole bunch of other stuff before you do the heroics.