Rift Quest:Trial of the Dragonslayer  

The Burial Sites are just rocks on the ground (see picture). As you approach a stealthed Dragonian Wanton Shadowblaze will attack you. When he is dead approach the rocks and use the Dragonslayer Talisman to summon a Blazing Essence. Kill and loot it to get your Fire Magic Residue.

Burial Site	Blazing Essence