Died During The Cowfusion Quest

I killed the boss and as I talked to NPC that takes the key, I got killed and spawned in Thesead, now the problem is that I didn't walk through the portal and the next step in my quest book is ''Walk through the portal"...

Tried going back to secret cow hideout, but I can't open it anymore.. I already have that guy's head.. How am I supposed to complete the quest now?

 

You have to redo the entire quest sadly.

 

Ok thank you, I didn't know where to start it again but I figured out.

 

Yeah it's a pain but unfortunately it's the only way. I had to redo all of the stages like three times cus I didn't do much damage to the cow dude and had to get a better weapon.