This is a bundle of 4 Dale van Every PB publishedin the 1960s by Bantam Books.  They are: The Captive Witch (s3721); Bridal Journey (s3479); Westward the River (h2648) and The Shining Mountains (s3255).  Good condition. : some shelf wear, creases on spine. some have price in red ink on fly leaf.  (See photos for details)