| Reprint edition (Random House, April 26, 2011), cover price $7.99 | About this edition:
HE INHERITED A WATCHMAKER'S STORE - AND A WHOLE HEAP OF TROUBLE.
| Reprint edition (New Amer Library, November 1, 1987), cover price $2.95 | About this edition:
George Dower, a nineteenth century London clock maker, is hired to repair a peculiar device whose function is unknown to him, and finds himself defamed by a strange and mysterious double
| Random House Inc, April 7, 2011, cover price $4.99