If you missed out on the promos from the Kickstarter campaign that Greater Than Games ran for Spirit Island, then you are in luck. Spirit Island: Feather and Flame puts them all in one package for you. You can get your copy now.
From the announcement:
Our new Spirit expansion for Spirit Island gathers four previously promo exclusive Spirits from our successful Kickstarter campaigns into one retail pack, available now!
Feather and Flame includes all content from Promo Packs 1 & 2- the Spirits Downpour Drenches the World, Finder of Paths Unseen, Heart of the Wildfire, and Serpent Slumbering Beneath The Island, along with new cards, two new scenarios, and Scotland. You know, Scotland? Harness the fire and what lies beneath to save Spirit Island!