The Portal, a chapter book, is a science fiction mystery for children ages 6 to 10. Where is Santa and his head elf Herbie? Three little girls, Claira, Ariel, and Kimberly, go on an incredible adventure on Christmas Eve to save Santa and Herbie. They meet a black cat who talks and changes shape and ride on the back of a large black dog with a bionic eye. Will they find Santa in time for him to pack his sleigh for Christmas?