Poly has always been a wanderfoot at heart - exploring, adventuring, getting into (and out of) trouble, but most importantly, solving mysteries! That's at the center of most quests, some mystery to solve. Be it 'who am I? What makes me happy?' (a wanderfoot's final quest is to solve that mystery), or simply 'what is this on the table'.
Poly is staying with a very nice family at the moment, on a peaceful world. No threats lurk in the shadows here - for a young girl, that means you have to make your own adventures! While the adults were out in the sun, Poly put on the trench coat, she went around the house inspecting everything. Eventually she wound up in the den, and found something *very* interesting on the desk.
(Later, her caretakers would die of embarrassment after Poly presents a *very* exaggerated report of what it is, how it got there, and why it was bitten.)