In the good old days, magic was indispensable; it could both save a kingdom and clear a clogged drain. But now magic is fading. Drain cleaner is cheaper than a spell, and magic carpets have been reduced to pizza delivery. Fifteen-year-old foundling Jennifer Strange runs Kazam Mystical Arts Management, an employment agency for magicians—but it’s hard to stay in business when magic is drying up. And then the visions start, predicting the death of the world’s last dragon at the hands of an unnamed Dragonslayer. If that's true, everything will change for Kazam—and for Jennifer. Because something is coming. Something known as... Big Magic.

Long ago, magic began to fade, and the underemployed magicians of Kazam Mystical Arts Management have been forced to take any work their sixteen-year-old acting manager, Jennifer Strange, can scare up. But things are about to change. Magical power is finally on the rise, and King Snodd IV, of the Ununited Kingdoms knows that he who controls magic controls everything. Only one person stands between Snodd and his plans for a magic-grab—and that's Jennifer. Yet even smart and sensible Jennifer would have trouble against these powers-that-be. The king and his cronies will do anything to succeed—including ordering a just-might-be-rigged contest between Kazam and iMagic, Kazam's only competitor in the magic business. With underhanded shenanigans afoot, how can Kazam possibly win? Whatever happens, one this is certain: Jennifer Strange will not relinquish the noble powers of magic without a fight.

The Mighty Shandar, the most powerful wizard the world has ever seen, returns to the Ununited Kingdoms. Clearly, he didn't solve the Dragon Problem, and must hand over his fee: eighteen dray-weights of gold. But the Mighty Shandar doesn't do refunds, and vows to eliminate the dragons once and for all - unless sixteen-year-old Jennifer Strange and her sidekicks from the Kazam house of enchantment can bring him the legendary jewel, The Eye of Zoltar. The only thing that stands in their way is a perilous journey with a 50% Fatality Index - through the Cambrian Empire to the Leviathan Graveyard, at the top of the deadly Cadir Idris mountain. It's a quest like never before, and Jennifer soon finds herself fighting not just for her life, but for everything she knows and loves . . .

Sixteen-year-old Jennifer Strange and her sidekick and fellow Orphan Tiger Prawns have been driven to the tip of the UnUnited Kingdoms - Cornwall - by the invasion of the Trolls. Their one defense is a six-foot-wide trench full of buttons, something which the Trolls find unaccountably terrifying (it's their clickiness). Worse than being eaten by Trolls is the prospect of the Mighty Shandar requisitioning the Quarkbeast and using him to achieve supreme power and domination - an ambition that has been four hundred years in the planning and which will ultimately leave the Earth a cold cinder, devoid of all life. Nothing has ever looked so bleak, but Jennifer, assisted by a renegade vegan Troll, a bunch of misfit sorcerers, the Princess (or is she now the ruler?) of the UnUnited (or are they now United?) Kingdoms, and Tiger, must find a way to vanquish the most powerful wizard the world has ever seen, and along the way discover the truth about her parents, herself, and what is in the locked glovebox of her VW Beetle . .