Awesome, I thought that Lucina had a good shot of showing up but never expected Robin to get in! Male and female versions too...
I keep getting more and more hyped.
If you talked to Laurent in the first village with Chrom or Miriel, he should have come along, regardless of whether you find the item. Additionally, the boss on this map doesn't move. The only way for him to commit suicide is if you move someone up to him, where he will attack.