World's Finest Sons: Part 2 of 2 - Written by Tom Taylor. Art and Cover by Bruno Redondo. NOTE: Story continued from Nightwing (2016 DC) #89. Nightwing promised Clark Kent that while hes off-planet, Nightwing would look after Clarks son, Jon, as he tries to fill his fathers shoes as Superman. But with someone out there murdering superpowered people, is Nightwing in over his head? Read Nightwing #89 for part 1 of this crossover story! 32 pages, full color. Rated T+ Cover price $3.99.