In Rat Queens Volume 2 - this series reached, IMO, epic proportions because we get some much backstory and so much character development for 70% of the characters which is saying a lot for a series with such a large cast of characters. 
 Picking up right where the previous one leaves off we have mass destruction, apocalypses and the girls are ready to combat whatever comes their way. Sawyer has been kidnapped and a portal to another universe is opened, causing chaos and along with trances/spells that makes people fall into their past. We get rich backstory of Violet, the dwarf who shaves her beard, is completely badass and had a falling out with her twin brother. Her plot develops nicely as we see her shun her traditions and seek to find herself away from what society wants from her - I have to say as a side note, I love that the girls have such loving relationships with their mothers. Violet also gets some development with her manly Orc, Dave, and yes, I totally shipped it. 
 Then we have Hannah, badass sassy Hannah that can't bring herself to love Sawyer. We see how her mother died, how she was ostracized as a young girl and we see how she built herself to protect her heart from being broke.. Really loved her development and of course Hannah/Sawyer are basically OTP.. 
 We also had some insight into the powerful Dee when her husband shows up and tho we don't dwell in her past, her past was mentioned in the previous volume but we do see her become a much more powerful priestess - which was great.