Kingdom Keepers VII: The Insider is the final book in the Kingdom Keepers series, written by Ridley Pearson.
Summary[]
The Kingdom Keepers’ senior year in high school is almost over. For more than three years, they’ve done little more than surveillance missions into the Disney parks after dark. Their battles are long behind them, they agree, the threat to the Disney realm silenced — albeit at great cost. But inside the catacombs of the Aztec temple where Finn Whitman faced down his nemesis, the monstrous Chernabog, a new threat brews. One that will rise like a phoenix … or, more accurately, like a stealth bomber.
Deception and betrayal rock the Kingdom Keepers as the merciless group of Disney villains known as the Overtakers stage an unexpected comeback. Supercharged with black magic, the Overtakers seek an iconic element that will power them to victory and render the Keepers — not to mention all of Los Angeles — defenseless. But a discovery by the Keepers provides them with one hope of victory — a lost icon that hasn't been seen in decades. Believed to have been gone forever, it may yet be saved. If so, the Keepers have one last chance to preserve the heart of the Kingdom — Disneyland — from a terrifying destruction decades in the making.