Original sentence: It focuses on the murder one by one of the Greene family: "The holocaust that consumed the Greene family", as detective Philo Vance  memorably puts it.This is the third in the series of Philo Vance whodunnits
Edited sentence: It also completes a trilogy.It focuses on the murder one by one of the Greene family: "The holocaust that consumed the Greene family", as Philo Vance  memorably puts it.The Benson Murder Case focused on the death of a single man, who led a public life and was involved in business; The Canary Murder Case focused on a couple and romantic love; and The Greene Murder Case focused on a family.The three books together have a powerful cumulative impact, their imagery bringing a tragic focus to basic human institutions.This book contains S.Van Dine's greatest ingenuity as a puzzle plot constructor, containing a number of clever ideas