Sadly, four of the grandchildren you saved in the Gobfather series of quests are here and they have been turned into Hobgoblins! You have no choice but to put them down like rabid poochums.
On Abyss level, there are 2 Hobgoblin Generators here, in all others only one.
In the second room there will again be 2 generators on Abyss, 1 in all others.
Hobert will break through the wall and join the fight at some point during the encounter. On Abyss, Lost John will be there as well.
Treasure Chest hiding behind boxes here!