First published in 1992, ''Literature/DragonWar'' is Creator/LaurenceYep's final installment in the ''Literature/DragonSeries''. It is the sequel to ''Literature/DragonOfTheLostSea'', ''Literature/DragonSteel'' and ''Literature/DragonCauldron''.

The [[BigBad Boneless King]] manages to capture Shimmer, Monkey and Indigo, and steal Baldy's Cauldron. The events of the book are mostly about their attempts to get it back, while preparing troops for a mounting war between the humans and the dragons.

* AChildShallLeadThem: In the book's final chapter, it's revealed that [[spoiler: Thorn is the only living heir to the throne]].
* AdiposeRex: King Sambar, who has had over a century of peace and feasting to expand his waistline.
* AndIMustScream: Thorn, whose soul is trapped inside Baldy's Cauldron.
* ConservationOfNinjutsu: When the trio are vastly outnumbered by the Boneless King's "perfect" stone soldier army, they easily smash them all to bits without sustaining any damage at all.
* TheDragon: Pomfret, who becomes the Boneless King's right hand man, and has a vicious fight with Shimmer in the climax of the novel.
* ForeignQueasine: The contents of the High King of Dragons' larder is filled with all sorts of creepy-crawly undersea creatures. They're so exotic and frightening-looking that the dragons unleash the (harmless) creatures upon human soldiers and bluff about how poisonous and deadly they are to scare them off.
* HeelFaceTurn:
** King Sambar XII, who was the antagonist of ''Literature/DragonSteel'', but becomes much more heroic when faced with the realities of war.
** [[spoiler: Pomfret]] makes one when Shimmer shows him that the Boneless King will wipe out the dragons. He eventually [[spoiler: [[HeroicSacrifice sacrifices himself]] to kill the King.]]
* LivingForeverIsAwesome: The Snail Woman and The Smith's limited magic can only reanimate Thorn in a humanoid shape, not restore him to a human body. They point out that this is actually a pretty sweet deal for everyone because doing so means that Thorn is effectively immortal. Immortal [[spoiler: kings]] don't have to pass on their [[spoiler:throne]] to unworthy and corrupt heirs. Nor do they have to worry about assassination.
* MagicMirror: The World Mirror, which shows possible futures.
* MasterOfIllusion: Although Shimmer had mostly been using the dream pearl to perform transformation magic for the past three books, she really demonstrates why it's called the ''dream'' pearl in this one.
* ObfuscatingStupidity: The Boneless King, who had taken over The Butcher's body, has to pretend to be a {{Muggle}} and conceal his magical ability behind spells of another mage in order to fool everyone into thinking he's still The Butcher.
* OmnicidalManiac: The Boneless King.
* OurGargoylesRock: The Boneless King has an army of "perfect" rock soldiers.
* RedemptionEqualsDeath: When [[spoiler: Pomfret]] discovers the Boneless King's actual plans for the future, he makes a final redemptive sacrifices to defeat the Boneless King.
* RoyalsWhoActuallyDoSomething: King Sambar... [[AdiposeRex finally]].
* UnskilledButStrong: Shimmer, it turns out, who can transform anything (including herself), and perform impossibly realistic and dazzling illusions with the dream pearl, cannot cast a spell to save her life [[AmuletOfDependency without it]].