I love playing solo with my Wizard due to his resourcefulness and ability to plan my fights, but one thing that gets me crazy is the inability to see some hidden enemies.

To name a few that usually I can't see before they are already at melee range:

- Thaarak Hounds in quests like Invaders.
- Most Drow Scorpions.
- Random archers and thieves.

My question is: Is there a way to improve my detection and see those creatures as a pure Wizard (considering I only have half ranks in Spot and Listen, and only Wisdom 8).

Are those enemies invisible in a way that See Invisibility would work?
If not, is there a way to improve my Spot/Listen enough to detect everything around my level (maybe Greater Heroism, Wisdom augment, Spot/Listen augments, etc)?