Mobs spawning from alter in non-accessible area.
Mobs spawn in the closed off area behind chief untabog alter.
What would happen if the boss spawns there?!?
Before boss spawn it also spawn some mobs you need to kill so 1 or 2 more should not be a problem?
nothing would be a very sad case of the cost of the summoning being paid, the killing of mobs -all that possible- done, and all for no boss for you to kill !
it is not like flawless sapphires grow on trees you know.