you will go to mine area to gain information of dragon, go to captain of paladin to deliver that information to acquire amulet, but amulet is already stolen, amulet is broken, reapair the amulet, kill the dragon, find secret library, go to big bad dragon's isleland, kill the big bad undead dragon and game ends. and while these process, there is no hope for changing order of quests. you can't find secrect library unless you receive a book from Xardas. you can't kill dragons before amulet is stolen. alll the plots are fixed tightly like JRPG.