COJE Management Group's most pared-down concept, the Zebra Room hides beneath sibling supper club Yvonne's, reached through a bookshelf door inside the subterranean Library. The setting is the former Locke-Ober space in Downtown Crossing, and the menu nods to that lineage: an 1875 salad named for Locke-Ober's founding year, and a two-pound lobster Savannah baked with sherry cream, blue oyster mushrooms, and gruyère. Tom Berry, COJE's chief culinary officer and a Ming Tsai protégé who once beat Bobby Flay on air, runs a tight steakhouse of prime cuts and wagyu strip alongside tableside martini service. With ten tables and a small bar, it is a deliberate rebuke to Boston's wood-paneled corporate rooms. Reservations come by request or through Dorsia, with bar walk-ins the gamble worth taking.