Dragonfly — Frederic S. Durbin

Bad things were starting to happen again in Uncle Henry's basement. People were moving around down there...

And that wasn't the half of it.

As Hallowe'en approaches, ,young Bridget Anne ("Dragonfly," to her friends) begins hearing strange things coming from the basement of her uncle's funeral parlor--peculiar noises and odd voices speaking of a stairway...a stairway that is almost complete. Uncle Henry, suspecting sinister forces may be at work, summons his mysterious friend Mothkin to investigate. Mothkin goes down the laundry chute for a look. And Dragonfly stubbornly follows him--into the strange and spooky underworld known as Harvest Moon...