The Diamond Caves are a system of ice caverns in the Ice Kingdom where the Diamond Trial takes place. They were named after the trial's creator, Queen Diamond. The caves are also called the Gift of Vengeance.
Queen Diamond trapped Foeslayer in the Diamond Caves after Foeslayer supposedly "stole" the IceWing's last animus, Prince Arctic. She put her in shackles and enchanted them to freeze Foeslayer until she was touched by a diamond-tipped spear. The shackles would only release her if the frostbreath of a royal IceWing was breathed upon it, presumably ransom for Prince Arctic. The Diamond Trial may have started because the last time she killed Foeslayer, two dragons were with her.
Winter and Hailstorm were instructed to enter the cave and touch the ice sculpture of a dragon with the pointed tip of their diamond spears. They wandered the caves together looking for the dragon sculpture for hours. Eventually, they stepped into a room that held many frozen IceWings. As they walked around they noticed a large frozen NightWing. Hailstorm instantly lunged towards her and tapped her with the spear, unfreezing a NightWing.
As the huge NightWing unfroze, she explained her job was to try to kill them. As they fought it turned out that the dragon they were fighting was none other than Foeslayer herself, enchanted by Queen Diamond to live to try to kill them.
Once Hailstorm killed her she instantly froze back into ice. Then Winter realized one of them was supposed to kill the other and the living one would survive to tell the tale and gain glory. However, Hailstorm refused to kill Winter. Winter promised to leave the kingdom forever, and unfroze Foeslayer. He freed her, presumably preventing the trial from ever happening again. Later, after Foeslayer had been released from the trials, she disappeared into the wilds of Pyrrhia.
The Diamond Caves are series of caves and caverns made mostly of ice, filled with stalactites and stalagmites like any other cavern, located at where Pyrrhia would breathe its frostbreath. Near Foeslayer's cave, there is an uncountable amount of frozen IceWing statues, who were previous victims of the Diamond Trial. An underground river runs near the entrance to the cave, into a dark chasm.
|Queens|| Present: Queen Glacier|
Historical: Queen Diamond
|Jade Mountain||Winter • Icicle • Alba • Changbai • Ermine|
|Other Dragons||Cirrus • Fjord • Hvitur • Lynx • Snowflake|
|Hybrids||Darkstalker • Whiteout • Eclipse • Shadowhunter • Typhoon|
|Kingdom||Great Ice Cliff • Moon Globe Tree • Queen Glacier's Palace • The Diamond Caves|
|Society||Circle Rankings • Diamond Trial|