Part of the Bristol Classical Press series of Spanish texts, this is Buero Vallejo's play "El Tragaluz". The series is designed to meet the needs of the fast-growing A Level and undergraduate market for texts in the Spanish language. Each text comes with English notes and vocabulary, and with an introduction by an editor with an expert knowledge both of the work and of its literary and cultural context. Set in the aftermath of the Spanish Civil War, this play occupies an important place in Buero Vallejo's theatre incorporating earlier metaphysical preoccupations with a later historical and political dimension.

Examines the degree to which playwright Antonio Buero Vallejo has been influenced by Cervantes, in particular by the Don Quixote myth. Buero attaches great relevance to the power of madness and dreams, and, like Cervantes, makes use of the fusion of fantasy and reality in his work.