Here is what weaver just sent after Limper. If it is slain then all the Valkyries should descend to kill its killer. (See note at end)
Activating the ring should only take a little spirit just as Ulthok activates his ring of invisibility.
Earring of Summoning / Magnetism: [Cannot be removed unless wearer dies]
Acts as a Ring of summoning Valkyries
(Can use the ring to summon a Valkyrie to fight for him but it only has three charges. Once all charges have been used this function of the ring is lost.)
Valkyries(Fighter 20)
Str 22Dex 20Con 19 Int 18Wis 14Cha 20 MV 15SZ 6’ MR 35% AC-2HD 22HP 176 #AT 2THAC0-1Dmg 1d8+5 (spear) +10
Special Att/Def: The Valkyries are visible only to fighters in mortal danger. They are only hit by magic and +1 or better weapons and
wield spears that can penetrate all armor, even if it is magical, as if the wearer’s armor class were no better than 4. Further, they are immune to fire, electrical, and ice (or cold) damage.
There are twenty-seven Valkyries, all svelte, beautiful, golden-haired battle-maidens. Role-playing Notes: The Valkyries love combat the way mortal Norsemen love bear-baiting. They never miss a battle. Only on Odin’s command will they aid either side, however.
Should anyone ever slay a Valkyrie, the Valkyrie simply returns to Valhalla— and her peers turn on the killer in their full fury.
I'd say we are all in mortal danger, especially Weaver and Ulthok, so when she should appear to all of us and Cor and Roan can pray to Odin for thanks and her aid.