FTP, name this Lynne Reid Banks book about Omri's diminutive toy Iroquois friend.
One sequel to this work features a character that was a dance-hall star who could see the future and was named Jessica Charlotte Driscoll, the protagonist's great-great aunt.  Another sequel to this work concludes with the protagonist successfully defeating invading skinheads. Supporting characters in this work include medic Tommy Adkins, who treats the wounded cowboy Boone. FTP, name this Lynne Reid Banks book about Omri's diminutive toy Iroquois friend. 
One sequel to this work features a character that was a dance-hall star who could see the future and was named Jessica Charlotte Driscoll, the protagonist's great-great aunt.  
The Indian in the Cupboard (accept The Return of the Indian or The Secret of the Indian)