Ben Alderman Series by W.D. Newman

While spending the summer with their grandparents on a remote farm in South Carolina, Ben Alderman and his sister Casey uncover a hidden world of magic; a world their grandmother is secretly visiting. It is a world where elves and dwarves are locked in mortal combat against a witch who is trying to free the last surviving wizard from exile. The witch has been defeated once before but with the combined power of the wizard, no one will be able to stand against them... moreWhile spending the summer with their grandparents on a remote farm in South Carolina, Ben Alderman and his sister Casey uncover a hidden world of magic; a world their grandmother is secretly visiting. It is a world where elves and dwarves are locked in mortal combat against a witch who is trying to free the last surviving wizard from exile. The witch has been defeated once before but with the combined power of the wizard, no one will be able to stand against them. Much to Ben's dismay, he learns that he is the one foretold in the ancient elfin prophecies to bring about the downfall of the witch and save this exciting new world from destruction. less

With the witch defeated, the elves begin preparations to once again take up their vigil, guarding a black dragon from Crag named Zoltan. Merlin's last enchantment has kept the dragon asleep for centuries, but when Gabriel brings Hob along to inspect the dragon, the bumbling dwarf finds Merlin's staff and accidentally breaks the enchantment... moreWith the witch defeated, the elves begin preparations to once again take up their vigil, guarding a black dragon from Crag named Zoltan. Merlin's last enchantment has kept the dragon asleep for centuries, but when Gabriel brings Hob along to inspect the dragon, the bumbling dwarf finds Merlin's staff and accidentally breaks the enchantment. Gabriel and Hob escape from the dragon into a cave that leads them into Kahzidar; the dreaded gnome mines, where they are captured by the mad gnome king Ringwald Stonebreaker. Ben, Casey, and their Grandma must join forces once again with Amos, the shape shifter, to save Camelot from the dragon that's bent on destroying it. But first, they must rescue their friends from Kahzidar! less

It's spring break and a visit to the Alderman farm leads to another exciting adventure in Camelot. Marcus, the elfin mage known as the Keeper, has been captured by Bellator, the mightiest of the twelve Immortals. Bellator is holding Marcus for ransom until Excalibur, the sword blessed by the Creator, is returned to him, but no one knows where the sword is located... moreIt's spring break and a visit to the Alderman farm leads to another exciting adventure in Camelot. Marcus, the elfin mage known as the Keeper, has been captured by Bellator, the mightiest of the twelve Immortals. Bellator is holding Marcus for ransom until Excalibur, the sword blessed by the Creator, is returned to him, but no one knows where the sword is located. Was the final prophecy of Venus given to provide hope in times of darkness or was it intended as a warning? Is Ben really the chosen one? Will he save Camelot... or destroy it? less