Q1. The "There is another tunnel" card is played and the discarded cards are returned to the deck. What happens to the "Dragon" card?
a. Is it left in the deck when the discarded cards are reshuffled in, or
You take deck with "Dragon" and discard pile, shuffle it together and then discard "There is another tunnel". So card "There is another tunnel" is no longer in deck.
. A player has played the "I'm not here!"
card and then continues to play other Dwarf cards from their hand.
a. Is this player now immune to the effects of any Counteraction cards played this same turn? or
b. The player is only immune to Dwarf cards played by other players on their turns?
If you play "I'm not here!" card you have immune to any card's effects, so any Counteraction and any Dwarf card. And you cannot play any card from your hand when this card is in front of you, because it doesn't effect on you