Doing Questline for Panther Cub (and your spirit disappears)?

Finally able to heal a Head Hunter with Bwemba's spirit.

I tried doing the quest SERPENTS and POISON a bunch of times, but I could not heal the Head Hunters. Turns out, the spirit of Bwemba wasn't following me because it would get stuck on the zep. After multiple tries, the way to get around this is to either relog or use the Blasted Lands portal.

And later, when you need to Defend Grom'gol, just don't pull too much mobs and stand near the commander. You don't have to kill everything, and you just need to survive for 3 minutes, so heal yourself if possible. Afterwards, you will go to the old flight master and it will have you catch a wyvern to the new hideout.

Hope these tips help!