"When William Came" is not a work by Saki (the pen name of H.H. Munro). Saki was a British writer known for his short stories and works of humor. "When William Came" is a novel written by H.H. Munro's contemporary, Saki wrote under the pseudonym Saki, and his works include witty and often satirical short stories."When William Came" was written by British author Hector Hugh Munro, who is better known by his pen name, Saki. Saki's short stories often featured humor, satire, and a touch of the macabre. Some of his well-known works include "The Open Window," "The Storyteller," and "The Interlopers."