The Doctor's Alarum Pocket Watch

A compact silver pocket watch with a hinged lid, its surface etched with intricate filigree patterns that catch the dim garden light. The Doctor fumbles it from his vest pocket as the first gunshot rings out, its brass casing cold in his palm. The watch's internal mechanism whirs audibly seconds before the mechanical alarm triggers, emitting a sharp persistent beep that cuts through the chaos of the ambush. Ace glances at it with recognition—she's heard this precise signal before—but her urgency is overridden by the immediate threat of unseen gunmen closing in.