[quote]Or did guardians just go land on it out of nowhere and go "Haha what's this let's rob it" I know in season of opulence he sent an invite, but as far as I can tell, the leviathan showed up way before Opulence occurred. What's the timeline and was there any dialogue or anything leading up to the first raid?[/quote] Yes, there was a adventure on Nessus that showed the 7th legion basically raiding vex areas and scanning Nessus's soil composition. We go there and stop them whilst reading what they were recording. Mostly the soil composition into royal wine... We listen to cabal radio chatter and hear emperor Calus deny the 7th legion into his own as they failed in their duties. Ghost tells cayde it was from emperor Calus, cayde got really shocked and ran to Ikora and we were given a quest to wait for the leviathans arrival... When the leviathan raid was launched, the leviathan arrived and we went on that quest to get legend of acrius. The leviathan was here and we went on it WAY before opulance, back in vanilla d2.