Half-Bloods United Book 1: The Dwarf's Gift

The demigods are back! New heroes from all of the camps, and our old friends from Camp Half-Blood and Camp Jupiter return to fight a new evil force. Plus, Magnus Chase and the other campers from Camp Midgard are also joining the party! Together, Percy, Jason, Magnus, and the other demigods will team up to defeat Greek, Norse, and Roman evil gods who plan to steal valuable artifacts from all three mythologies. Their first target is a powerful Norse ring that has the ability to create gold, but the ring's possessor will have a curse fall upon them. The evil gods plan to extract a certain material from the ring that has the power to weaken anyone that the holder of the ring chooses, and will use it on the gods and anyone else who dares defy them. The heroes must stop the gods before their plan succeeds, retrieve all items that they attempt to steal, and fulfill the new prophecy cast upon them... all before it's too late.