These adventures are super intriguing and most delightful to play!
I've just started a campaign of Hidden Isle yesterday night and we started from The Metaphagus: perfect to get the players into the Dioscoria lore, and to get to know each others. We are planning to play them all, sprinkling them with bits of clues and elements for PCs' background and goals.
Thank you for the most fantastic work behind this gem of a game!