4/4 After Salomon August Andrée's doomed Arctic crossing, investigators piece together events.
BBC Radio 4 Extra
3/4 A strange epidemic sweeps through the inhabitants of a quiet Essex suburb.
2/4 Two ambitious young doctors tackle a yellow fever epidemic in 19th-century Cuba.
1/4 When a cholera epidemic strikes London in 1854, the mercurial Dr John Snow investigates.
Maureen Wetherby keeps seeing a shadow out of the corner of her eye.
5/5 Maureen does not let her tumour diagnosis stop her from going for a facial.
4/5 Diagnosed with a tumour, Maureen plans to meet her old football-playing pal Maud.
3/5 A nurse is due at Maureen's house any minute, and she is not looking forward to it.
2/5 Maureen has recently learned that she has a tumour behind her eye.
1/5 Maureen Wetherby keeps seeing a shadow out of the corner of her eye.