This is a thoughtful take on Matt Colville's Delian Tomb adventure, and a great starting adventure that can be dropped into any 5e fantasy setting. The main addition the author brings to this adventure is context, providing a ready-made plothook, and some friendly NPCs, to start the action off. If you are looking for a straightforward adventure to start a longer campaign, or high stakes, low prep one-shot, this is an excellent choice.

This is a straightforward system for overland travel, presented in a concise, easy to understand way. I personally like that the information pertinent to the DM is confined to page 2, so the first page, detailing how the system works, can be given as a handout, without tipping off your players as to what the DCs are. I hope to see more from this author.