''Prisoners of Power'' (original Russian title: ''Обитаемый остров'', lit. ''Inhabited Island'') is the sixth novel by the Creator/StrugatskyBrothers to be set in the Franchise/NoonUniverse. First serialized in a magazine in 1969, published in book form in 1971.

The protagonist, Maxim Kammerer, is stranded on the AfterTheEnd CrapsackWorld of Saraksh where the atmosphere has such enormous refraction index that the ''horizon seems to bend upwards''. After a nuclear war, the planet is divided into several surviving rump empires. And all of them seem to be competing over who can be the most evil. The empire where he lands practices MindControl on the unwashed masses and FantasticRacism against those who can withstand their Mind Control methods. At first Maxim seems a bit of a FishOutOfTemporalWater, just trying to get back home and unable to comprehend the nature of what's happening around him, taking the propoganda at face value. He proceeds to uncover [[PoweredByAForsakenChild the truth]] and tries to improve the situation. How well he succeeds is debatable.

Various ActionAdventure tropes are played with and deconstructed, including but not limited to MightyWhitey (the locals are white, but certainly savage compared to the protagonist, who is tan due to sunburn), NoEndorHolocaust (averted), and WhatTheHellHero.

There are three versions of the novel - the original (all but impossible to find), the censored version (896 corrections) approved by the Soviet government (the basis for all official foreign translations) and the 'restored' version that reverts many -- but not all -- of the changes (the only version still in print). A movie adaptation premiered in Russia in December 2008.
!!Tropes found in the novel:

* AlienSky: Saraksh's skyline must look really bizzare to a Terran. The atmosphere's chemical composition results in TOTAL lack of clear skies (number of times when sun was clearly seen is counted in one-digit number), and somehow distorts optics to the point where the planet's surface appears concave instead of convex, making it seem as if the planet is actually the interior of a giant bubble. It's pretty bad when you consider it prevented the planet's inhabitants from developing any kind of cultural concept about the existence of a universe outside their world.
* AnAesop: [[spoiler: If you want to change the world for the better, a thorough plan is required - not just blowing things up.]]
* BadassGrandpa: The statesman [[OnlyKnownByTheirNickname known as]] "The Wild Boar".
* BulletTime: One of Kammerer's abilities.
* CoolPlane: The "Mountain Eagle" bomber.
** That's His Imperial Highness Prince Kirnu's Personal "Mountain Eagle" Bomber With Four Golden Banners to you, private!
** Based on giant planes of the time, mostly [[http://en.wikipedia.org/wiki/Tupolev_ANT-20 ANT-20]].
* DieselPunk: Saraksh's [[TheAestheticsOfTechnology aesthetic]] [[PlanetOfHats hat]].
* DoesThisRemindYouOfAnything: [[spoiler: The Center for MindControl is located at The TV Central Studio. Additionall redistribution of the signals by Towers is exactly how TV translation worked in USSR. And of course, the Towers are useless without regular propaganda.]]
* TheDreaded: The White Submarines.
* TheEmpire: All four of them, both in the literal and tropey sense. One of them seems to be more democratic, but...
* FascistButInefficient: Securing their own power is the only thing which Unknown Fathers can do well. In everything other their government isn't very competent.
* FromBadToWorse: Your CrapsackWorld isn't bad enough? Let's start a ''second'' nuclear war!
* GoMadFromTheRevelation: [[spoiler: What happens to the less stable of the mind-controlled population if they don't receive dose of tower's radiation.]]
** [[spoiler: Also, to some degree, to Maxim: when he discovered that Wanderer is German.]]
* HumanAliens: two races are native to Saraksh. One is this (and in this book, we only see them). The other is the Headies (Golovans), who are {{Intelligent Gerbil}}s in appearance but quite StarfishAliens in mindset.
* LaResistance: A certain percentage of people have innate PsychicBlockDefense against the mind towers' rays. Said rays, however, cause them horrible headaches. On this account, they are officially declared sub-human and ruthlessly persecuted, the true reason for which being, of course, that they are the only ones who have enough free will to topple the government. Even they, however, have fallen prey to apathy, lack of planning and extremism. [[spoiler: The heads of state are actually this exact kind of people, who just managed to grab viable power in time. Even they suffer from their own mind rays and have scientists relentlessly working on protection - to little effect. Some of resistance members are even recruited by leaders when they need replacement.]]
* LeftForDead: [[spoiler: Granted, he's been shot several times to vital organs and a headshot barely missed.]]
-->[[spoiler: ''"Massaraksh, just the bullet to the liver should have been more than enough!"'']]
* LiteraryAllusionTitle: The original title was a play off ''Literature/RobinsonCrusoe''. Like Crusoe, Maxim is stranded on an unknown island, but this island is anything but uninhabited.
* SchizoTech: Sarakshians have roughly World War II level tech and science, but their astronomical knowledge and worldview are practically at a prehistoric level due to the above mentioned atmospheric phenomenon. That also made them unable to work out normal flight physics and aviation is almost non-existent. However, they have achieved remarkable progress in nuclear physics and neurological sciences.
* TheLostWoods: One of the major locations of the book is a huge forest that was once a battlefield for two of the states. By the time of the story, it is filled with minefields, camouflaged sentry guns, autonomous tanks and ballistic missile launchers, most still running on nuclear power and carrying out their patrols. The state, where most of the books story takes place, sends convicts into the forest to disarm the machinery, essentially making the convict camps throughout the woods death camps.
* NiceJobBreakingItHero: [[spoiler: Destroying the Centre, ruining the plan to save the country, not following safety instructions when making planet sweep to begin with.]] This has consequences in the larger 'verse, with Maxim's blunder being the final nail in the coffin of the program that allowed private citizens to explore the galaxy on their own. The program is shut down, and exploration is left to the professionals.
* OnlyKnownByTheirNickname: The Unknown Fathers and the whole government in their country.
* PuttingOnTheReich: The remaining empires, especially the one that becomes the main antagonist of the novel.
** Island Empire is obviously based on ImperialJapan.
* TwistEnding: "Dummkopf! Rotznase!" [[spoiler:It turns out, the Terrans were present on Saraksh the whole time and secretly steered it towards recovery--and Maxim has just ruined their entire plan.]]
* UnusualEuphemism: "Massaraksh", literally "the world inside out" - referring to a heretical theory, according to which life as they know it exists on the outer surface of the world sphere, rather than the inner surface.
* WarIsHell: In the process of invading another state, the protagonist, his friend, and several other convicts are forced to steer outdated tanks towards the border so the nuclear mines along it are set off, making it safe for the professional army to roll through.
* WeAreStrugglingTogether: The mind-controlling totalitarian oligarchy is opposed by what may initially seem to be an unified rebel "Underground". However, to quote the novel itself, "the Underground wasn't a political party. What's more, it wasn't even a front of political parties". Its members couldn't even agree as to whether or not the mind control has to go. Factions range from blatant fascists (who want to overthrow the government and keep the mind control towers) to "biologists" (who just want to destroy the towers, but don't mind keeping the government - so they can't even agree about that), and there are factions within factions as well. It is explicitly pointed out that many prominent Underground leaders are either agents or secret allies of the government. The protagonist ultimately doesn't even bother trying to rally them, instead striking a deal with one of the less secure government leaders for inside information, recruiting a few of the more sensible Underground members and blowing up the mind control center without consulting anybody else. It is implied in later Noonverse novels that he and his allies then had to put down rebellions by some of the other groups, even though the country was already a terrible mess by then due to mind control withdrawal and such.
* WhamLine: [[spoiler: "Dumkopf! Rotznase!"]]
* ZeroPercentApprovalRating: Averted. The government is oppressive, highly corrupt and very incompetent, but still totally approved by the citizens - thank to MindControl.