Halloween quests question

Using the info from this (Halloween? Is it coming?) comment, I did the Khemi quest and when I was ported out of Nighttime Khemi, there was an NPC there with two Festival of Set quests (Survive and Kill). Was I supposed to pick those up before doing the serpent quest or are they separate PvP quests (which is what they seem like but I want to be sure)? It’s my first time doing the Halloween stuff and I want to at least do all the solo quests so I’m trying to make sure I’m not missing anything.

The Festival of Set quests are PvP and do not need to be done if you don’t wish to.

Thought so, thanks.