The Shadow Guests by Joan Aiken [FIRST EDITION • FIRST PRINTING] 1980

The Shadow Guests by Joan Aiken 

U.S. FIRST EDITION / FIRST PRINTING [1980] DELACORTE PRESS

 Ex-library hardcover with dust jacket in very good condition.  Dust jacket is in excellent condition; light wear and tanning. 

Book itself has tape ghosting / remainder marks on cover, but reads nicely.  Some pages show signs of use, but are still bright and white!  

After the mysterious disappearance of both his mother and older brother, Cosmo is sent away to live with his eccentric mathematician aunt. Lonely and confused, Cosmo must also deal with being the new kid at school. Not an easy assignment! But things take a weird twist when Cosmo is visited by ghosts from the past. Ghosts who claim to need his help fighting an ancient curse!

Only in time will Cosmo learn that he is at the center of that ancient...and deadly...curse.