"Head back to Ardougne and speak with Erin, he will tell you to head back to Jorral and show him the journal. Once at the outpost, speak to Jorral and show him the journal."
I didn't go back to Erin. After reading the Journal I went straight to Port Phasmatys. I did all three parts before going back to Jorral. Faster that way.
"Once in the port, head to the southwestern corner and speak to Droalak." Droalak the ghost is not in the SouthEast corner. He's near the General Store.