Good does not die, it may wait for the right time, but in the end, it always wins over evil. Evil is close to home as Steven and his friends face incredible danger in this third exciting adventure in the Guardian of the Tomb series! The Dark Lord has hidden his demonic warriors in caves and Steven (and his readers) must learn about these fascinating natural wonders to stop him. In The Guardian of the Tomb, Steven explored the pyramids of Egypt. In The Guardian of the Dragon, he traveled to Scotland to hunt for dragons. In The Guardian of Carlsbad Caverns, Steven will encounter his most dangerous battleground of all... Praise for the Guardian of the Tomb Series: "Russell weaves a spell-binding tale... This fast-paced adventure novel will delight middle grade kids, both boys and girls" - Sharon K. Solomon, Author of A Walk With Grandma "Great read to introduce young teens to see adventure in History. Can't wait to get the next installment. Readers are going to be dreaming of their own portals." - Shawn N. Bauldree, Teacher and Mother "An imaginative time-travel journey... full of suspense" - Jenny Ferns, Author of Ripple Effect: Because of the War