# Books matching “Herman Landon”

## Books

- [The unknown seven](https://invisiblenetwork.ai/books/gutenberg/78010) by Herman Landon (English)
- [The seventh shot](https://invisiblenetwork.ai/books/gutenberg/76659) by Herman Landon (English)
- [The Gray Phantom's Return](https://invisiblenetwork.ai/books/gutenberg/37490) by Herman Landon (English), also an audiobook
- [The Gray Phantom](https://invisiblenetwork.ai/books/gutenberg/37913) by Herman Landon (English)

## Audiobooks

- [Gray Phantom](https://invisiblenetwork.ai/books/librivox/5995) by Herman Landon (8 h 12 min, English)
- [Gray Phantom's Return](https://invisiblenetwork.ai/books/librivox/17801) by Herman Landon (9 h 26 min, English)