Aquaman & the Flash: voidsong

"Barry Allen is the Fastest Man Alive. Arthur Curry is a child of the land, but a king of the seas. As the Flash and Aquaman they're both trying to navigate their personal relationships and professional lives as superheroes. All the while, a clock is counting down to a collision course with an alien species that threatens to destroy everything they love.

Barry Allen, also known as the scarlet speedster, The Flash, is having a difficult time balancing all the things in his life. From forgotten errands for his family to battling his villainous cast of rogues, Barry's attention is being pulled in all sorts of directions. It's a feeling he shares with the king of the ocean depths, Arthur Curry "Aquaman," who's having the same massive-scale struggles.

As if that wasn't enough, an alien race known only as the Voidsong is inching closer to an invasion of Earth. Who are these mysterious aliens and what do they want with our planet? The Fastest Man Alive and the King of the Seas must embark on a quest to uncover the answers and save the world"--.