Hearts on Fire

The Fringe guide makes this sound like a participatory event, but it's not any more so than any other performance. It is immersive, though, with a setting inside a heated sweat lodge at the top of C's most recently commandeered venue. Recreating the scene of the deaths of the followers of self-styled motivational guru James Arthur Ray in 2009, the staging really helps to evoke the experience of that horrific event, for which Ray was found guilty on three counts of negligent homicide.

Sacrificing explanations for a sensational rendering of the event, the accomplished and engaging cast from Peculius Stage succeed in capturing the emotional complexities of those who were willing to defer their sense of self to Ray's authority but little illumination is shed on their motivations and, indeed, on whether Ray bought into his own image or was aware of his position. A captivating experience but, as interactive theatre goes, it's not enough to rival Belt Up, C's resident masters of the form.

C nova, 0845 260 1234, until 27 Aug, 4.50pm & 7.50pm, £9.50--£11.50 (£7.50--£9.50).