The mouse’s name, she read later in a caption, was Sibir. It wasn’t a real mouse the old footage had been about — it was the studio’s mascot, a papier-mâché creature built by Veronika Babko years ago when they were students. Veronika believed every creative place needed a small, improbable keeper of stories. Sibir had presided over midnight rehearsals, frantic costume repairs, and first-run premieres. The slideshow stitched together the studio’s past, but its real story was in the margins: candid frame notes, ticket stubs, and a handwritten list titled “Why We Stay.”