Important Info for Barrow-Dyad quest

For step 5 of the Barrow-Dyad quest, you need to find the thrall statues in the Nether activity. While pretty much every guide for the quest tells you to go to the 3 individual statues, the fragments aren't specific to each statue. I loaded into up a Nether: Explore which spawned me right next to the thrall statue there and summoned the boss, killed it and collect the fragment. After I collected the fragment I just left and immediately went back in and it worked. Got all 3 done in less than 5 minutes!!

Edit: Thank you wakinupdrunk for mentioning, the thrall statue I'm talking about is in the Hall of Souls landing zone in the Nether: Explore activity!