LEGO(R) Batman(TM) is taking on the Joker(TM), and it's up to you to decide what happens next in this all-new interactive novel!The Joker(TM) is on the loose in Gotham City, and it's up to you to decide how Batman(TM) and his Super Hero friends take him down! Everyone who's seen the LEGO(R) Batman Movie knows that when the Crown Prince of Crime(TM) takes over the Gotham City Power Plant, Batman decides to save the city and lets the Joker escape. But what would have happened if he'd decided to do something different?! The choices you make will open up a huge number of alternate story lines! Featuring Alfred, Robin(TM), Batgirl(TM), Harley Quinn(TM), Superman(TM), Wonder Woman(TM), and more, the cast from THE LEGO Batman Movie is all here. With over thirty possible endings, the Caped Crusader needs all the help he can get!