The king is robinas father
Nope
what quest is it to get doomknigth armor
some one told me it is in the back of a cave or dungen
There is no forest, but the cave can be accessed via walkthrough from the Necropolis.
u have to have a dragon amulet and you talk to sir pent and ask to go to the hydras cave
if you want to go to the robina cave you go to robina's zone if you want to go to the stone head boss cave go to warlic's zone
You can get it by going to glaisaurus cave quest or copy this linkhttp://www.dfwiki.com/index.php/Fire_Gem
you go the other direction (if you are talking about the place by warlick) Go the direction with the burning candle.
go to Robina's zone in falcon reach and keep going to the right it is the along with some others as well
If you are talking about the earth cave because you want to get your dragon, I have an answer. Ok, so unless it does not transport you to the extact (I know I misspelled it sorry) location of the earth cave, than head north toward the rocks which you can see from Warlic's tent. If you see a cave with two light torches by it, you are doing well. Now, just go inside it look around. You should see the thing you needed to get your own dragon.
First you have to have a Dragon Amulet. Then, you have to have to be done with the Dragon Egg Saga. Then go to Lady Celestia in Sunbreeze Grove. When you talk to her, there will be many icons. Click on the one that says, "Baby Dragon Quests and Training". At the bottom there is an icon that says,"Grow Dragon". It costs 10,00 gold. But, be careful, because it will apear as a kind of weird looking toddler dragon. It will only be an adult dragon when it is facing like a really hard boss or something.
u head up north to the fire cave but when u enter turn to ur left and u should see a floating rock or something and the bag nxt to it