Question about Son of Arnor

By Ulairi, in Rules questions & answers

I've got a question about Son of Arnor.

When I play him, say on turn 1 during the Passage Through Mirkwood quest, can I pull the Forest Spider right away from the staging area? Also, do I resolve the combat during the normal combat round or when Son of Arnor engages the Forest Spider?

Thanks!!

sorry for the tripple post.