Lynne Reid Banks

It's Omri's birthday, but all he gets from his best friend, Patrick, is a little plastic Indian brave. Trying to hide his disappointment, Omri puts the Indian in a metal cupboard and locks the door with a mysterious skeleton key that once belonged to his great-grandmother. Little does Omri know that by turning the key, he will transform his ordinary plastic Indian into a real live man from an altogether different time and place! Omri and the tiny...

In this third book about Omri and his magic cupboard, Omri and his friend Patrick must risk grownups' discovering their secret when they find themselves in need of a friend's toy plastic doctors to save wounded people from the dangerous world of the Old West which the cupboard enables them to enter.