hail hydra

I'm not sure exactly, but there are a few. It depends on how you count different editions and special releases.

Hydra is mostly a fictional concept. It often appears in myths, comics, and movies, but has no real basis in the natural world.

The ending of 'Hail to the Bard' is an open ending, so it's impossible to determine whether it's good or bad. A novel usually left many clues and hints to guide the reader to think about the development and ending of the story. The readers could judge whether the ending of the novel was satisfactory or not based on their own understanding and emotional reaction.

Yes, Shield Hydra is indeed present in some comic storylines.

No, it isn't. 'Hail Caesar' is a fictional film that takes inspiration from various elements but is not based on a specific true event or person.

You can show the character frantically waving their hand and looking desperate to catch a taxi.

I'm not sure. You might have to read through the novel carefully to find out.

No, it's not. 'Hail Caesar' is a fictional story created for entertainment purposes.

In fanfiction, the relationship between Black Widow and Hydra can be very complex. Some fanfics might explore her time within Hydra, perhaps delving into how she was indoctrinated or how she managed to resist their control. It could show her as a double agent from the start, using her skills to undermine Hydra's plans from the inside.

Yes, Hydra did infiltrate SHIELD in the comics. It was a major plot twist.