Seven Crows order to destroy the cross-border vampiric threat. Riley and Sam cannot count on back-up from their normal team, as high-level string pulling has pushed them off the case officially. The four discover there is more than just seemingly random vampire murders when more than one supernatural threat shows up and local hospitals begin filling with the sick and the dying. Crows are also prevalent as well. Many are mysteriously dying. Living crows seem to be warning the foursome of future threats based on an old poem. The poem goes like this: "One crow sorrow/Two crows mirth/Three crows a wedding/Four crows
Mass noun verb number invariability: (a) that seen with mass nouns such as "water" or "furniture", with which only singular verb forms are used because the constituent matter is "grammatically" nondiscrete (although it may ["water"] or may not ["furniture"] be "etically" nondiscrete); and (b) that seen with collective nouns, which is the result of the metonymical shift between the group and its (both grammatically and etically) discrete constituents. Some words, including "mathematics" and "physics", have developed true mass-noun senses despite having grown from count-noun roots. Mass noun In linguistics, a mass noun, uncountable noun, or non-count noun is a noun with the