Batman: Harley and Ivy

A single-issue DC special from 2007, Batman: Harley and Ivy reunites writer Paul Dini with artist Ronnie Del Carmen for a lighthearted caper starring the fan-favorite criminal duo. The story captures the anarchic chemistry between Harley Quinn and Poison Ivy as they team up for mischief outside the shadow of Batman. It's a brief but charming snapshot of the characters in their pre-New 52 heyday, penned by one of the key architects of Harley's modern popularity.