The Mosaic Theatre turned 10 this past season, and what a birthday celebration it's been. In early 2010, the theater suffered a rare misfire in the form of the musical Make Me a Song: The Music of William Finn. Since then, it has been one winner after another, like Dying City, the South African diamond-diving drama Groundswell, the energetic and absurdist hilarity of Completely Hollywood, the witty and moving award contender Collected Stories, and the uproarious ensemble piece The Irish Curse. The latter broke attendance records for the theater and prompted the playwright, Martin Casella, to book a flight down here to see it. With Dusk Rings a Bell, the latest from The Laramie Project's Stephen Belber, and Sam Shepard's newest work Ages of the Moon this summer, Broward County's most provocative theater shows no signs of resting.