There is sort of a frustrating limbo with the Titan Quest.
Someone wrote about this on another website and I wish I saw it sooner.
After the battle [with the Titan], you get the quest "Protect the Chaos Heart in Broken Bough". The arrow will point you towards a dungeon exit (not the one you came in from). If you use Team Up, it'll port you back to where you were when the Team Up timer ran out/you ported into the dungeon. You won't be able to access Broken Bough and complete the quest--you have to redo the dungeon, and you can't port to a friend in Broken Bough.
If I saw this post earlier, I wouldn't have to do this quest over again -- and how am I going to do it WITHOUT teaming-up and risk, again, not being able to do the second part? I guess, I'll give it one last go and that'll be it regardless of the outcome.
As soon as you complete the Titan't Trident battle, you might be ported back due to Team Up. However, in the initial area of the Husk there should be a teleporter that leads you to the next part.
