Okay so I searched the forums and couldn't find the answer to this question.
Last Night we were playing, and we were facing off against this bat creature thing, and it cast deeper darkness in an already dark area, and then proceeded to rely on its echolocation ability to track and hurt the party.
I am a 6th level Tiefling Arcanist with the see magic exploit. My party mate is also a 6th level arcanist but an elf without the see magic exploit.
We are both inside the Deeper Darkness Spell area when its cast and are in it for the entirety of the encounter.
He casts detect magic in an effort to track the creature who is holding a magical scroll. I follow on my initiative with my See Magic ability.
The question is can we see him/the scroll and therefore track him through the Deeper Darkness area, specifically, can I pinpoint him to target him/the scroll with spells or can I not see him at all. Keep in mind the battle took longer than 3 rounds but he (bat thing) was moving the entire time. There was this huge argument over line of sight vs. line of effect, and whether detect magic would grant me line of sight yada yada. I argued that the spell granted me a line of sight... anyway HELP.