What hides under the dark?

Terra Incognita is a D&D 5E adventure crafted by JVC Parry for characters of levels 5 to 10. It is a silver best seller on the DMs Guild, and features a 24-page rescue mission in the Underdark, which should take you approximately 6-10 hours to complete.

Disclaimer: We were provided with a free digital copy of this product.

The Scenario

The story revolves around the disappearance of a cartographer who happens to be a friend of the party. Three different plot hooks are provided, making it easy to introduce the adventure into an ongoing campaign. Whatever option you choose, it begins with the party arriving at the cartographers’ guild to uncover the mystery behind their missing friend. As the investigation takes place, they gather clues that eventually lead them to the Underdark and realise that the cartographer was, in fact, kidnapped.

The Underdark is presented as a dangerous and unfamiliar place, where the walls seem ready to bite you! Observation and careful planning become the party’s best friends, as they need to pay attention to their surroundings and piece together information as they progress on their journey.

Spoiler alert: the cartographer is held captive in Grindstone, a cave that once was a mighty duergar fortress. But the story doesn’t end there. In the final pages of the supplement, some drow launch an assault on Grindstone, building the tension steadily until the very end. The adventure even provides guidance on when to trigger the assault to achieve maximum dramatic impact, helping game masters to adjust the encounter depending on how the adventure unfolds and according to each party’s strength and playstyle. Everything feels well connected, and the outcome depends on the party’s actions. It varies from them saving the cartographer to becoming captives of the drow and transitioning into the Out of the Abyss campaign. – That would be a smooth transition if you ask me.

Encounters

Moving on to the encounters section, they blend exploration, social interaction and combat nicely. The players will have to question witnesses and gather information before they actually draw their swords. When they finally travel to the Underdark, survival becomes part of the journey. They will encounter memorable foes like a mindflayer, purple worms, duergar, gargoyles and, of course, drow. Combat doesn’t feel excessive. It reinforces the feeling that danger lurks around every corner beneath the surface.

During their journey, the party will interact with various NPCs, each with their own motivations and personalities. Some of them can be convinced to aid the party, while others may reveal valuable information if approached carefully. The dungeon itself feels well designed, with each room serving a purpose that may or may not involve traps and puzzles. Rather than feeling like disconnected encounters, the supplement offers a nice story with opportunities for investigation, roleplay, clever thinking and much combat.

Layout & Art

The one-shot follows the typical 2-column layout and includes a table of contents at the very beginning. Information is presented logically, with boxed read-aloud text, bold headers and clear sections that make the adventure easy to run.

Maps are also included, with numbered locations directly accompanied by detailed descriptions, reducing page flipping during the session.

There are plenty of illustrations throughout the document that complement the text. They feature creatures encountered in the story and also atmospheric pieces matching the mysterious tone of the Underdark. The cover art sets the tone right from the start, stating that this place is anything but welcoming.

Final thoughts

If you are looking for a compact adventure in Underdark that mixes exploration, puzzles and combat into a well-paced rescue mission, then Terra Incognita is worth adding to your collection. Have you tried it yet?

Stay crafty and step under the dark,
Your new favourite author.

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