In 2004, with the addition of guitarist Paul van den Broek and keyboardist Koen Stam, the band's name changed from Erinyen to Ex Libris.

They started playing more shows and bassist Peter den Bakker joined the band while recording their debut album.

Ex Libris supported shows with other Dutch symphonic metal bands such as Epica, Stream of Passion and ReVamp.

[1] Around the same time, Dianne became the new front-woman for German symphonic metal band Xandria, right after the departure of Manuela Kraller, without leaving Ex Libris.

The third and final chapter, called Anne Frank was released on 15 November 2019 along with the complete edition with all three EPs.