You might wonder why the works of a 90-year-old Irish-American author from the Bronx are so popular on a Russian social network. The answer lies in her writing style.
Searching the platform reveals dozens of public and private "clubs." The largest groups (often named The Queen of Suspense or Mary Higgins Clark & Carol Higgins Clark [her daughter, also a novelist]) typically feature:
For heavy readers, subscription services offer the "all-you-can-eat" model that VK groups emulate, but legally. While Clark’s major titles are often sold per-unit, many of her anthologies and collaborative works (like The Plot Thickens) are available on subscription plans.
If you decide to explore the "Mary Higgins Clark vk" ecosystem, do so with your eyes open.