Do Better gathers more than 20 stories set in the world of sorcerer/monster hunter/death god Marla Mason, heroine of the ten-book urban fantasy series that began with Blood Engines (2007) and concluded with Closing Doors (2017), including two pieces original to this collection: "Do Better," about Marla's hunt for an escaped demon (and some personal growth), and "The Four Horsepersons of the Eucatastrophe," which sends Marla on a supernatural...