Apparently, the Guardians of the Galaxy halo effect includes in-joke post-credit sequences, with Marvel Entertainment announcing that Howard the Duck, the character who cameoed at the very end of James Gunn’s summer blockbuster, will get his own ongoing comic book series next year. Written by Chip Zdarsky with art by Joe Quinones, the series will feature the character becoming a private investigator in the Marvel Universe. The new Howard the Duck series will launch in Spring 2015.