Rules & district effects
Bid gold secretly: the higher bidder acts second. In Spy, roll 1D6 for how many cards you may inspect; pay the rolled 1D6 gold before looking to reroll. Deploy thieves across districts; an uncontested card is won automatically. At a contested card each guild rolls 1D6 per thief; highest sum wins, ties are broken with 1D6 rolls. Thieves return after capture unless a card effect removes them.
Palace doubles gold gained and thieves lost; Bazaar doubles gold gained; Brothels and Opium Dens double thieves gained; Wells and Ghetto halve gold gained (round down); Mosques doubles thieves lost. Each surviving thief adds 2 gold to final score.