Secret of the Samurai Sword — Phyllis A. Whitney

The Ghost of Kyoto

When Celia and her brother Stephen arrive in Kyoto to spend the summer with their book-writing grandmother, they are only looking forward to a pleasant summer vacation abroad. But they soon find themselves involved in a strange Japanese mystery. Celia awakens one night to discover the ghost of an ancient samurai warrior haunting their garden. Is it a real ghost or an elaborate hoax? What is the phantom seeking? And why does its presence so upset the old Japanese artist who lives across the street?

Celia is determined to solve the riddle of the phantom warrior, but first she must uncover some long-forgotten secrets that were not meant for any American to know. . .