Promecia

Promecia, the Balloon Pilot is a traveler NPC that shows up in the Marketplace after you have sold a certain combination of items. Their detailed info can be found under Traveler Gifts in the journal menu.

This traveler can be found in the Grand Library after all their gifts have been collected.

Book
Book 9 "Dewdrops - Solemn's Currency" can be obtained from this traveler. Books can be found at the Grand Library.

"All of Solemn's kingdoms use a single currency: Dewdrops. Raw Dewicite can be mined underneath the floating continent, but it is a very dangerous endeavor. Once the Dewicite is mined, the Coinmaster Guild stamps and mints each Dewdrop to ensure its authenticity, creating a shiny blue and silver nugget of value."

Version History
The following is the recorded version history.
 * v1.01: + Fixed travelers not spawning in marketplace when placed on bridge/pier tiles
 * v0.96: + Added Promecia the Balloon Pilot (New Traveler)