This paper examines the relationship between the English Language and Literature-in-English in secondary schools in Nigeria. The purpose is to explore and expose the interdependence of the two subjects in enhancing English language competence. Apart from the educational advantages, it is also in the opinion of the writer that language is not only a necessity for the formulation of thoughts but also part of the thinking process itself, which is one of the great attributes of a literary man, that is, power of intuition. Considering the "Siamese twin composition" of the two subjects, especially in a second language situation in Nigeria, the integration of the two, it is argued in this paper will, no doubt, enhance language skills: listening, speaking, reading and writing as well as sub-skills of language such as pronunciation, comprehension, vocabulary development, perception, composition, etc. It is the conviction of the writer that Literature-in-English should form an integral part of the English language curriculum and examinations of May/June and November/December Senior Secondary School Certificate Examinations (SSCE: WAEC, NECO and NABTEB). Note: West African Examinations Council (WAEC), National Examinations Council (NECO), National Business and Technical Examinations Board (NABTEB).