KABUL, Afghanistan — FOUR large clocks tick out of sync, puncturing the silence of his Soviet-built apartment. A half-burned candle sits next to a stack of books. A small television is covered in soot.

This is where Rahnaward Zaryab, Afghanistan’s most celebrated novelist, locks himself up for weeks at a time, lost in bottles of smuggled vodka and old memories of Kabul, a capital city long transformed by war and money.

“We live in a vacuum, lacking heroes and ideals,” Mr. Zaryab reads from his latest manuscript, handwritten on the back of used paper. The smoke from his Pine cigarette, a harsh South Korean brand, clings to yellowed walls. “The heroes lie in dust, the ideals are ridiculed.”

The product of a rare period of peace and tolerance in Afghan history, Mr. Zaryab’s work first flourished in the 1970s, before the country was unraveled by invasion and civil war. Afghanistan still had a vibrant music and theater scene, and writers had a broad readership that stretched beyond just the political elite.