Complex sentence: With Besant's assistance he was readmitted a few years later, and although similar rumours occurred throughout his career, Leadbeater's talents as a prolific author on occultism kept him an important presence in Theosophy until his death in 1934.
Split into simpler sentences: With Besant's assistance he was readmitted a few years later. Although similar rumours occurred throughout his career, Leadbeater's talents as a prolific author on occultism kept him an important presence in Theosophy until his death in 1934.