Our Fruiting Bodies collects stories of old growth and fresh decay, of stubborn rebirth and the faint but nonimaginary paths connecting life and nonlife. From the sharp, sweet confessional of their Peter Pan-inspired “Awfully Big Adventure,” through the melting ambitextualities of “Just Us” — from the early, dizzy-eyed quest at the heart of “Looking for Lilith” through the newly unfurling tendrils that pierce the grounds of “I Being Young and Foolish” — Nisi Shawl’s search for the power of fiction’s truth puts pure, precious gifts right here, right in your hands, ripe and ready for reading.