Sure, it is. 'Never Cry Wolf' is classified as fiction because it presents a narrative that is created rather than based strictly on real events. The author weaves a tale to engage and entertain readers.
In a Hellsing x Devil May Cry fanfic, the clash of the different aesthetics is cool. Hellsing has that dark, gothic, and often bloody atmosphere, while Devil May Cry has a more stylish, action - packed feel. A fanfic could explore how the characters from each universe adapt to the other's environment, like Dante in the Hellsing world dealing with the strict vampire - hunting organizations there.
I'm not sure specifically as there could be many stories with that title. It might be about a monster that has some kind of special quality or experience that makes it not cry, perhaps it's a very tough or emotionless monster.
It's likely Alucard. His vampiric powers are extremely potent. He can regenerate from almost any injury, has superhuman strength and speed, and can even manipulate shadows. In a crossover, he could potentially overpower many of the Devil May Cry characters, especially if he has the element of surprise.
Well, the theme has a lot to do with nature and our perception of it. In 'Never Cry Wolf Novel', it challenges the common stereotype of wolves as evil predators. It delves into how our false beliefs can lead to wrong actions towards these animals. Through the story, we see that wolves are an important part of the ecosystem and should be respected rather than feared without good reason.
Since I don't know the exact story, it's difficult to say. But surely there is the monster as one of the main characters. There might also be characters who interact with the monster, like other monsters or maybe some humans who are brave enough to approach it.