Join the Cutie Mark Crusaders in the third book of the Ponyville Mysteries series as they solve the mystery of the Rusty Horseshoe! Scootaloo, Apple Bloom, and Sweetie Belle have been spending a lot of time with their new friend, Lilymoon, at the spooky house on Horseshoe Hill. One night, Scootaloo actually sees the ghostly Olden Pony - a character from one of Rainbow Dash's scary stories. Scootaloo worries everypony will think she's just a scaredy-pony, but she's too frightened to sleep. Scootaloo needs the help of her friends to figure out the mystery of the Olden Pony and her Rusty Horseshoe... and soon. Ideal for younger readers, these mysterious and sweetly spooky stories are sure to appeal to all My Little Pony fans - both girl and boy.

Penumbra Quill grew up in Califoalnia and started her career as a travel writer, journeying across Equestria to report on the hottest vacation trends. A visit to Las Pegasus changed everything when Penumbra discovered a ghost in the city’s spectacular new resort, The Whinny. That trip changed Penumbra’s life forever. Since then, she has dedicated herself to writing true tales of Equestria’s spooky and supernatural happenings to chill and thrill her readers. She currently resides just outside Ponyville with her pet Phoenix, Firebrand, and enjoys catching Wonderbolts shows whenever she can.