I've written a comprehensive book for authors "Writing Scary Scenes" about techniques for creating suspense, tension, apprehension, horror, terror and other fearful emotions in your readers. It's practical, crammed with advice and ideas, and suitable for all genres - although not all techniques suit all genres; some would be far too strong for a Regency Romance.
The book contains more material than the class of the same title, although it doesn't give feedback. It's perfect if you don't have time for a class, if the class date is inconvenient, if you prefer self-study, or simply as a reference to keep at hand while writing and revising.

Are your frightening scenes scary enough? Learn practical tricks to turn up the suspense. Make your readers' hearts hammer with suspense, their breaths quicken with excitement, and their skins tingle with goosebumps of delicious fright.

This book contains practical suggestions how to structure a scary scene, increase the suspense, make the climax more terrifying, make the reader feel the character's fear. It includes techniques for manipulating the readers' subconscious and creating powerful emotional effects.

Use this book to write a new scene, or to add tension and excitement to a draft. You will learn tricks of the trade for "black moment" and "climax" scenes, describing monsters and villains, writing harrowing captivity sections and breathtaking escapes, as well as how to make sure that your hero doesn't come across as a wimp... and much more.

The book is costs $3.99 and I reckon it's one of the best investments you can make in your writing, because it will help you improve your stories in a big way. But of course my opinion is biased. ;-)

Here are the URLs to the main places where you can buy the book:
Amazon.com http://www.amazon.com/Writing-Scary-.../dp/B008IEJTSE
Amazon.co.uk http://www.amazon.co.uk/Writing-Scar.../dp/B008IEJTSE
Kobo http://www.kobobooks.com/ebook/Writi...XyEEaHQNkg&r=1
Smashwords http://www.smashwords.com/books/view/179899
Barnes&Noble https://www.google.co.uk/search?q=ba...hrome&ie=UTF-8
iTunes http://itunes.apple.com/us/book/writ...46105761?mt=11