Book 1 of 3 in the Star Trek: Deep Space Nine miniseries entitled Millennium.
"With the Federation losing ground in its war against the Dominion, the galaxy's greatest smugglers—including the beautiful and enigmatic Vash—rendezvous on Deep Space 9. Their objective: a fabled lost Orb of the Prophets unlike any other, rumored to be the key to unlocking a second wormhole in Bajoran space—a second Celestial Temple."
Note: Elim Garak plays a large role.