This is one of DC's best selling books right now and I'm giving it another chance after dropping it around issue 12. The book has gotten a lot tighter in the writing department. I never have trouble following the incredibly silly plots, which used to be a problem for me, and the supporting cast is much more memorable and likable. In the two new issue I have read, Poison Ivy has appeared in both. I really enjoy the pairing of those two. Not to mention that Conner and Palmiotti have to win the award for most explicit lesbian references between Ivy and Harley.That actually brings me to my next point, how surprisingly weird and occasionally filthy Harley Quinn is as a best-selling book. This issue features a sailor who looks exactly like Popeye eating alien seaweed that makes him super strong. Half way through the issue Harley has a multiple page pirate dream sequence featuring the Joker. And this is a top ten selling book!Conner and Palmiotti have really nailed the tone of exactly what a Harley Quinn book should be. It's a great example of artists doing what they want to do rather than trying to be popular and being rewarded for their efforts.Cullen Bunn's run on Aquaman continues as we, very slowly and in a unnecessarily complicated fashion, are told how Arthur became the enemy of Atlantis that he is in the new status quo.It turns out another dimension is slowly infecting ours and to save the world Aquaman must destroy the world infecting ours. The problem is that the other world is inhabited by people that are somehow Atlantean. The specifics of this were not revealed in this issue, which only helped highlight the pacing problems. All of the exposition is given intermittently through flashbacks while we see Aquaman in the present doing his renegade thing as he fights to protect these other dimensional atlanteans. This is very jarring and a storytelling technique that I feel is used to create a false sense of complexity.The story itself is interesting enough once it gets underway as we meet the gang of underwater themed badasses that Mera has sent to bring Aquaman in. It seems like a change destined to be forgotten though, as there is nothing that feels distinctly "Aquaman" about it. I think this storyline could really be slapped on to any character, and actually feels similar to the incursion storyline from New Avengers. I do plan to continue reading though, and would love to be proven wrong.It was recently announced that Rick Remender was going to be leaving Marvel to focus on his numerous creator owned projects. This was bittersweet for me; while I prefer his independent work, his runs on Venom and Uncanny X-force were part of the reason I got into modern marvel comics. I'm glad to see that the series that might very well be his last work at Marvel is off to a good start.Hail Hydra follows Ian Rogers, Steve's adopted son, as he is transported to a domain in Battleworld where Hydra has taken over everything. I believe the idea here is that this is the regular universe Ian who has been transported forward in time to Battleworld, which is a neat idea from Remender. So far this book really feels like a denouement to Remender's Steve Rogers run and a time for Ian to finally get the spotlight.Lots of good action and interesting set-up. A quality first issue.