I'd like some math on what to do when you have more than one Secret Passage and you want specific cards next turn.
Suppose I have just played a Laboratory and now I have three Secret Passages, and three cards I want next turn.
Deck: 1 - 2 - 3 - 4 - 5 - 6
Hand: c1 - c2 - c3 - sp1 - sp2 - sp3
Play: (leaving out Laboratory for clarity)
Play Secret Passage and draw two cards. Suppose I want c1, c2, and c3 in my next turn.
Deck: 3 - 4 - 5 - 6
Hand: 1 - 2 - c1 - c2 - c3 - sp2 - sp3
Play: sp1
I place c1 under the fourth card of my deck.
Deck: 3 - 4 - 5 - 6 - c1
Hand: 1 - 2 - c2 - c3 - sp2 - sp3
Play: sp1
I play another Secret Passage and draw two cards.
Deck: 5 - 6 - c1
Hand: 1 - 2 - 3 - 4 - c2 - c3 - sp3
Play: sp1 - sp2
I place c2 under the second card of my deck.
Deck: 5 - 6 - c2 - c1
Hand: 1 - 2 - 3 - 4 - c3 - sp3
Play: sp1 - sp2
I play my third and last secret passage and draw two more cards.
Deck: c2 - c1
Hand: 1 - 2 - 3 - 4 - 5 - 6 - c3
Play: sp1 - sp2 - sp3
I place c3 on top of my deck.
Deck: c3 - c2 - c1 - 7
Hand: 1 - 2 -3 - 4 - 5 - 6
Play: sp1 - sp2 - sp3
Looking at this it's basically just "place the card you want next turn under the [insert amount of draw you have left in your hand]th card of your deck." Unless of course if your draw gives you more draw, in which case Secret Passage rewards you for careful deck-tracking. This, of course, changes if you want to specifically place cards on top of your deck or on the bottom.
I still need to get my hands on secret passage though, Dutch second edition Intrigue is not in stores yet.