Summary of chapter 138 of the Linga Mahā Purana is as follows:

This chapter recounts the historical event of young Śvetaketū, who was destined to die at an early age according to astrological fate. Absorbed in deep worship of the Śiva Liṅga, Śvetaketū called upon Mahādeva when Kāla arrived to take his life, prompting Parameśvara Śiva to manifest instantly, push back the deity of death, and grant Śvetaketū eternal youth and immortality.