In 1519, eight years before Martin Luther wrote Whether One May Flee from a Deadly Plague, the Swiss preacher and reformer Huldrych Zwingli faced a deadly outbreak of plague in Zürich. It would have been safer to flee the city, but Zwingli stayed to minister to the sick and dying among his congregation, caught the disease himself, and nearly died. He wrote a poem, later set to music, chronicling his experience. The ‘Pestlied’ is a rare and visceral first-hand account: ‘Ich mein, der tod | sey an der thür’ (‘I think that death | is at the door’). The lines are both alien and familiar, out of time but topical, the archaic Swiss-German rhymes lyrically captivating but linguistically confusing (Luther once dismissed Zwingli’s dialect as ‘churlish, shaggy German’).