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
Noun and noun phrases can typically be replaced by pronouns, such as "he", "it", "which", and "those", in order to avoid repetition or explicit identification, or for other reasons. For example, in the sentence "Gareth thought that he was weird", the word "he" is a pronoun standing in place of the person's name. The word "one" can replace parts of noun phrases, and it sometimes stands in for a noun. An example is given below: But "one" can also stand in for larger parts of a noun phrase. For example, in the following example, "one" can stand in for "new car".