Now this one has definite possibilities.  Pluto as an emissary of the Elder 
Gods, or worse, Nyarlathotep itself, is a frightening idea. 

Pluto as an emissary of the OUTER Gods (Azathoth, Yog-Sothoth, etc), you 
mean. The ELDER Gods (Nodens, Hypnos, etc) either don't give a flying fig 
about humanity one way or the other, or are actually friendly towards us. 

-Mercutio
"A plague 'a both your houses!"