Secret Tajemství
| Composed by | Bedřich Smetana, |
| Company | Prague National Theatre Opera |
| Venue | Prague National Theatre, Prague |
| Premiere | May 31, 2024 |
| 6 Nov 2026, Friday, at 19:00 | Secret  | From 550 to 1790 CZK | |
| 6 Dec 2026, Sunday, at 19:00 | Secret | From 550 to 1790 CZK | |
| 18 Dec 2026, Friday, at 19:00 | Secret | From 550 to 1790 CZK | |
| 28 Dec 2026, Monday, at 19:00 | Secret | From 550 to 1790 CZK |