The colon is used to separate two independent clauses when the second explains or illustrates the first. In such usage, the colon functions in much the same way as the semicolon. ... When two or more sentences follow a colon, capitalize the first word following the colon.
Ex: He got what he worked for: he really earned that promotion.
ExplanaMientras que la novela sólo tiene lugar en el transcurso de unos días, es una historia de toda una vida para un joven privado llamado Henry Fleming. La historia ...tion: