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</div></div><br/>Robin's excitement at their venture wasn't in regards to the Grimm itself, although discovering new species would certainly prove interesting.  Rather, his interests lay in that of the Grimm's poisonous cloud and potential identification.  Of course, that required a sample of the toxic compound: science wasn't built upon the realm of speculation or assumptions.  No doubt, his father would be quite keen to obtain a sample (provided he hadn't already).  He could kill two birds with one stone, in that case.  Sate his curiosity and earn the respect of his father.  Well, provided he could obtain a sample.  Robin lightly ran his hand across a row of small silver vials attached to his belt: Atlas-pattern sample collection containers.  Lined with Teflon, they could capture a small amount of nearly any chemical substance: provided he was close enough, that is.<br/><br/>As Shiro launched into another scientific tangent, Robin couldn't help but roll his eyes.  If he was to levy such a speech upon all of them, the least Shiro could do was ensure both Nekro and Karmyne could begin to understand it.  The absent looks emblazoned on their faces were dead giveaways of how little they knew in regards to said matter, and Robin wasn't feeling keen on any further explanation.  Besides, all they needed to know was not to touch the cloud (and to avoid further contact).  Base identification of gas poisoning would also serve helpful, and Shiro had excessively covered that subject.  Still, Robin's curiosity was piqued.  "Y'know, you<i>could</i>have just said 'nerve gas' or 'sulfur mustard' to ensure everyone else understood what sorts of compounds you were referring to," he mentioned to Shiro.  He'd barely spoken to the red-haired student despite similarities in their scientific backgrounds.<br/><br/>Pale blue eyes met Shiro's briefly as Robin continued to talk, although he doubted Shiro would be listening.  "Of course, it's also possible for the Grimm itself to possess enzymes capable of reactivating the inhibited AChE, meaning it could be immune to its own nerve poison.  Sulfur Mustard is itself an interesting compound, although the Grimm would need to aerosolize it to form a cloud of sorts.  Since mustard agents and the like contaminate wide areas and produce distinctive burns...  Hmm..."  Robin paused in thought for a few more moments.  "What about a blood poison?  A cyanogen-based compound, perhaps?  Or a choking agent, phosgene?"<br/><br/>Additionally, Robin was quite interested in measuring how the cloud reacted to fire: many of the known chemical warfare compounds reacted with exceptional violence when ignited by a heat source.  While he wasn't fond of being caught in said explosion, he wanted to test his hypothesis, however minimally.<br/><br/>Such interest in chemistry occupied much of Robin's attention: yet when K mentioned he'd lead the second group, Robin's concentration vanished in an instant.  He gave K a respectful nod, his voice low.  "Understood.  We'll let you two take the lead, then." Petty distractions or arguing would serve no further purpose, and Robin would endeavor to keep such actions to a minimum.  Shiro and Karmyne seemed agreeable enough, he supposed.  As Akena and Nekro headed onward into the forest, Robin gestured to both Shiro and Karmyne.  "Let's move out.  We'll keep a healthy distance, let them do their thing."