Book 1

Gotham City Sirens

by Paul Dini

Published 28 May 2010
Originally published in single magazine form in Gotham City Sirens #1-7--T.p. verso.

Book 2

Songs of the Sirens

by Paul Dini and Tony Bedard

Published 29 November 2011
This graphic novel features the bad girls of Gotham City! Catwoman, Poison Ivy and Harley Quinn are tired of playing by other people's rules regardless of which side of the law they're on. As their dangerous alliance with The Riddler continues from Volume 1 continues, the Sirens are willing to do anything to uncover the truth behind which mysterious villain is targeting them all for death.