Of Course there is one ! It is a multi realm guild of adventurers including Darka (Zu and others from Darka I suppose), CE, Tara and other realms. The name is "Treasure Seekers". It helps to arrange auction for unique items, role plays and other many benefits to adventurers. All realm's adventurers are welcome. Contact CE's ruler if you want to join.
It seems there is actually another guild in Strombran called Seekers of Excitement, which I don't believe is exclusively advy working together on stuff, but other stuff too, though I would need to see description again (I just realized I am in it after getting promoted to full member which has a nice grant of 5 a month)
