Whitehall Mystery

No. Jack moves between numbered circles, but Investigators move between Crossings, ignoring the numbered circles; each can move 0, 1, or 2 Crossings per turn and cannot end on another Investigator’s Crossing (pp. 5, 9).

No. Search the numbered circles directly connected to that Investigator’s Crossing, one at a time; finding a clue immediately ends that figure’s search for the turn (pp. 9–11).

Normally, no: an arrest names exactly one numbered circle adjacent to your Investigator’s Crossing. Jack is arrested only if that circle matches his current position (p. 11).

Jack must move to a different adjacent circle each turn, and cannot cross a Crossing occupied by an Investigator unless he uses a Coach. If he cannot make a legal move, he loses (p. 8).

No. Jack chooses four white circles, one in each of the four different grid squares, and may reach the remaining locations in any order (pp. 5–6).

Jack keeps it secret until the Investigators finish their movement and clue/arrest actions for that turn. If he has not been arrested, he then declares the location and starts the next round; he loses if he fails to reach the next one within 15 moves (pp. 6, 11–12).