Helena watched as the free grew from his palm as if it were dirt.  She was amazed by this feat, though it was simply a tree.  At him comment about perfection, Helena teased, "Eh, I think it's a little uneven."  She let a short, natural pause pass between them and added, "It's a pretty good tree- possibly perfect."  Seeing him roll up his sleeves and reveal the mucus was interesting, but she figured that was how he controlled the fire, similarly to lighter fuel on charcoal.  His arms ignited and she instinctively backed up a few inches.  "Fire really can do a lot," she agreed, looking at the positive aspects rather than negative.  "It cooks, disinfects, warms...  Some even say it has healing powers."