The Flash: An Adult Coloring Book (Coloring DC)

"A mysterious and powerful Speed-Force killer has left a trail of bodies in his wake and only Barry has the power to stop him. But when the killer stays one step ahead of him, Barry finds himself face to face with the Teen Titans and Kid Flash for the first time. All this will lead to a confrontation with the Flash's most deadly foe, The Reverse Flash!"--Provided by publisher.