The Chalice War Books in Order

The Chalice War is David B Coe in a lively, myth-forward urban fantasy mode. The books pull Celtic legend into the modern world and ask what it would look like if ancient treasures, old gods, and underworld enemies were still active just out of sight of ordinary life.

The central premise is simple in the best way. The four great treasures of the Sidhe, the Stone of Fal, the Spear of Lugh, the Daghda's Cauldron, and the Sword of Nuadu, are not just relics. They are sources of power that help keep magic alive in our world. The Fomhoire, working from the demon Below, want those treasures for themselves. If they succeed in pulling them away, the balance breaks.

The first book, The Chalice War: Stone, begins with Kelsey Strand, whose strange encounters with danger force hidden magic to the surface, and Marti Rider, a Sidhe sorcerer desperate to protect the treasure tied to them both. The Chalice War: Cauldron shifts the action to Sydney, where Riann Donovan and Carrie Pelsher get pulled into the same larger war through murder, pursuit, and another threatened artifact.

Each book has its own lead pair, but the enemy is shared.

One of the series' pleasures is that it refuses to treat mythology as something remote and dusty. The Morrigan can appear like dangerous celebrities. Manannan mac Lir can feel both ancient and oddly familiar. Big supernatural stakes live beside city streets, travel, friendships, panic, jokes, and the very human problem of deciding whom to trust five minutes after learning magic is real.

If you want contemporary fantasy that moves fast, likes its lore, and keeps its danger close to hand, this is what to expect. The books are broader and a bit more playful than Coe's grimmer series, but the pressure is real. Ancient war, modern setting, and no promise that the next treasure stays safe.