Book 24, what is Agamennon's reaction to hearing about the slaughter? give quote to support response

"Happy Ulysses, son of Laertes," replied the ghost of Agamemnon, "you are indeed blessed in the possession of a wife endowed with such rare excellence of understanding, and so faithful to her wedded lord as Penelope the daughter of Icarius. The fame, therefore, of her virtue shall never die, and the immortals shall compose a song that shall be welcome to all mankind in honour of the constancy of Penelope. How far otherwise was the wickedness of the daughter of Tyndareus who killed her lawful husband; her song shall be hateful among men, for she has brought disgrace on all womankind even on the good ones."