* It's a lesser-known work: The novel might exist but has not been widely published or discussed, making it less known.
* There's a slight misunderstanding: It might be a different title, or the authors' names are misremembered.
* It's a personal work: Perhaps "Paglipas ng Dilim" is a novel written for a specific audience or purpose, and not widely available to the public.
To find more information, you could try:
* Checking online databases: Search for "Paglipas ng Dilim" and the authors' names on websites like the National Library of the Philippines or other online book repositories.
* Consulting Filipino literature experts: Reach out to professors or librarians specializing in Filipino literature.
* Searching for related works: Look for other works by the authors, as the title might be a variation of another novel's title.
Without more information, it's difficult to say definitively whether "Paglipas ng Dilim" exists or not. However, with some additional research, you might be able to discover more about this potential novel.