Wow. Where Narbonic Perfect Collection Book 1 was a rollicking set of tales full of world building and character development, Book 2 is where the rubber meets the road. Shaenon K. Garrity knits the seemingly-random tales and events from the first book into a tale of Mad Scientist Creation Gone Mad, and by the end we’re not 100% sure who’s mad and who’s sane (and which we prefer!)
I wholly endorse finishing this one off with The Reactorside Reader, as it is an excellent wrap-up in text form to the tales presented in Book 1 and Book 2 of the Perfect Collection.