Collecting:
"Harley & Ivy" from Batman: Harley and Ivy.
"24 Hours" from Batman Adventures Annual #1.
"The Harley and The Ivy" from Batman Adventures Holiday Special #1.
"Harley and Ivy and ... Robin?" from Batman and Robin Adventures #8.
"Oy to the World" from Batgirl Adventures #1.
"The Bet" from Batman: Gotham Knights #14.
"Role Models" from Batman: Black and White #3.
*From Paul Dini and Bruce Timm, the masterminds behind the critically acclaimed Batman: The Animated Series, comes this early adventure of Harley Quinn and Poison Ivy, packed with hilarious hijinx and tons of action! Harley and Ivy want to take down the Batman once and for all, but first, Harley's got to prove that she has what it takes to make it as a bona fide villain in Gotham City. *Source: dccomics.com