Invsibility and AoO

[Ceska]

I have a question, it bugs me for several days now and I can´t get to an solution, so I ask you for help.

When a invisible creature passes (as a move action) between a Druid and its Animal Companion and the Animal Companion gets an AoO (since he could pinpoint the creature by the scent ability), does so the Druid (even when he missed a Spot or a Listen Check)?

The example might be confusing, so: When a PC gets a AoO against an invisible foe, because he detected him by any means, does another PC also get an AoO, even if he didn´t notice the enemy passing by, by the fact that he "sees" his comrade attacking an (for him) empty space?

(sorry if my english isn´t quite as good, as it should be)

 

[Caliban]

I have a question, it bugs me for several days now and I can´t get to an solution, so I ask you for help.

When a invisible creature passes (as a move action) between a Druid and its Animal Companion and the Animal Companion gets an AoO (since he could pinpoint the creature by the scent ability), does so the Druid (even when he missed a Spot or a Listen Check)?

The example might be confusing, so: When a PC gets a AoO against an invisible foe, because he detected him by any means, does another PC also get an AoO, even if he didn´t notice the enemy passing by, by the fact that he "sees" his comrade attacking an (for him) empty space?

(sorry if my english isn´t quite as good, as it should be)

The animal companion doesn't get an AoO, scent let's him know what square the invisible opponent is in (that's what they mean by pinpoint in the rules), but the target still has full concealment, which prevents AoO's.

In answer to your question: No, seeing someone else take an AoO does not allow you to take one.