The Furnace Reading Series brings outstanding authors together with the weird aural hallucinations that pop up on Hollow Earth Radio from time to time, just to see what happens. The resulting performance is part radio play, part tone poem. Tonight’s Furnace author, Lacey Jane Henson, is the kind of writer who can imbue tiny moments with tremendous crescendos. In “A Memory,” a glass of milk spilled on a mourner’s sweater at a wake becomes a matter for reflection on life and death: “We build whole cities to forget that underneath our feet, worms inch through earth.” (Hollow Earth Radio, 2018A E Union St, hollowearthradio.org, 7 pm, free)