…in April, as Mr. Putin cracked down harder to snuff out any criticism of his war in Ukraine, the authorities announced that her effective house arrest would be converted to 21 days in a penal colony. She decided it was time to leave Russia — at least temporarily — and disguised herself as a food courier to evade the Moscow police who had been staking out the friend’s apartment where she was staying. She left her cellphone behind as a decoy and to avoid being tracked.

A friend drove her to the border with Belarus, and it took her a week to cross into Lithuania…