PSA: Acquire an Invis Clickie

[Hobgoblin]

I think the troglodyte shamans, scorpions, and the bats can detect you even while invised. Scorpions and spiders have a tremor sense, I think bats have a blindsense, and the trog shamans have or cast true seeing. In this quest I've always found it best to invis past trolls and gnolls in the few areas between the climbing parts, while killing any bats and scorpions.

The quest does not lend itself well to invising through though because of all the scorps and bats.

bats yes - scorps dont see invis