Say you are on Skull Passage, and you draw Turncoat and a Sneakthief. The Turncoat Event forces you to ditch the Mercenary Follower (Adventure card) and an Axe (Purchase card) on the Skull Passage space, and you win the subsequent Psychic Combat vs. the Sneakthief and discard it to take an Object from any player.
1) Is there a Bridge discard pile? Is that where the Turncoat and Sneakthief go, or is the intention to have Bridge cards shuffled back into Bridge deck at the end of the turn even if they are not actually present on the space at the end of the turn?
2) Since the Mercenary and Axe are on the Bridge space at the end of the turn, are they also shuffled back into the Bridge deck? Or is the Mercenary placed onto the Adventure card discard pile, or maybe even shuffled back into the Adventure card deck since it belongs to that deck? The Axe, does it return to the Purchase deck instead?