You’ll have to pay for it. But I’d say it’s worth it. My uber-agent, Barbara Poelle, is doing a Writer’s Digest webinar this Thursday, Nov 3. You don’t have to be there, you can access the information at your convenience. But you should register as early as you can because three people will be chosen for a 3-chapter or full manuscript critique. Everyone gets a one manuscript page critique as well as a one page query evaluation.
Check out this link for more info:
The Ends and Outs of Mystery/Thriller Writing (YA and adult)