Dude
get back and level up to level 17,18 or if you can 19
or else you will have to start over again
Firs of all you can"t kill Laiken and demon if you are ot high level and second even if you beat the crap out of them you still have dangerous area afterwards
dont need to start again i was 16 hard mode and did it get the gir| to summon things get demon after u go behind that area where throne is summon creature/undead jump behind throne wait for demon dead and u win.
and kicked ass afterwards