This chapter follows on from the last to trace the development of the prosthetic modernism discernible at the turn of the twentieth century, as it works through the modernist novel from Proust, Joyce, Stein and Woolf up to the extended late modernist work of Samuel Beckett. The chapter reads Beckett’s reception of Proustian and Joycean modernism, from his novels of the thirties and forties up to his late work Company and suggests that this reception might best be understood as a poetics of twining. Beckett offers an extended reflection on the ways in which the modernist novel performs a mode of twining, a joining together of mind with prosthetic extension; but he also enacts a specific form of untwining, which demonstrates how the novel has always shown the unbound, the disaggregated, to be a constituent part of the terms in which it conducts its binding properties.