The Hollow Earth: Hidden Pyre

The Hollow Earth is the newest frontier that humanity has been introduced to. Much like the others, it is an unwelcoming place. But, unlike the others, it is not just the environment that can kill you. The Hollow Earth is home to creatures that defy our imagination and they are the sole rulers of this domain.

When a simple cartography mission goes awry, a Monarch research team finds itself stranded in the world's most dangerous ecosystem. Their quest to find safety sends them on an expedition to discover an unknown secret that could have great repercussions for the balance between the surface and the Hollow Earth.

First chapter:

https://tnarrarchive.blogspot.com/2023/04/titan-watching.html

Latest chapter:

https://tnarrarchive.blogspot.com/2025/09/planofaction.html

Full list:

https://tnarrarchive.blogspot.com/p/hollow-earth-chapter-list.html