Daggers, dervishes, Rego and the world's most expensive egg the week in art

"Henry VIII's Lost Dagger A curious quest for the Tudor tyrant's lost, highly phallic dagger in the house where modern gothic began. Strawberry Hill House, London, until 15 February Sufi Life and Art From portraits of dervishes and saints to modern abstract art with a Sufi spirit, see how this fascinating religious tradition has inspired creativity for centuries. British Museum, London, until 26 July"

"Paula Rego This show explores a period when Rego renewed her art with dedicated drawing, partly inspired by the writings of Martin McDonagh. Cristea Roberts Gallery, London, until 17 January Cristina Iglesias Massive sculptures inspired by geology, which look like rugged rock formations by the sea. Hauser & Wirth, London, until 20 December"

"Selves and Stand-Ins Robert Mapplethorpe and Gillian Wearing are among the artists here who question what a self actually is. Modern One, Edinburgh, until 25 January Image of the week Photograph: Image courtesy the artist. Saodat Ismailova From ASMR prophets to Soviet hypnotists and mountaintop rituals, the Uzbek artist and film-maker Saodat Ismailova invites you in to an unforgettably strange psychic dreamspace in this first solo exhibition in the UK where there is scene after scene of breathtaking beauty, elemental ambience and disorienting anxiety. Read the review."

Henry VIII's Lost Dagger stages a curious quest for the Tudor tyrant's lost, highly phallic dagger at Strawberry Hill House in London until 15 February. Sufi Life and Art juxtaposes portraits of dervishes and saints with modern abstract pieces at the British Museum until 26 July, tracing Sufism's creative influence. Paula Rego's renewed drawing practice, partly inspired by Martin McDonagh, features at Cristea Roberts Gallery until 17 January. Cristina Iglesias exhibits massive, geology-inspired sculptures resembling rugged coastal rocks at Hauser & Wirth until 20 December. Selves and Stand-Ins probes selfhood via Mapplethorpe and Gillian Wearing, and Saodat Ismailova's first UK solo film crafts a disorienting, beautiful psychic dreamspace.

Read at www.theguardian.com