Danila Savluk ne vpervye popadaet v drugoy mir: v sem" let on byl Mal"chikom-Vityazem i pobedil noch" v mire Legendy. Teper" emu 12, on okazyvaetsya v mire Otrazheniya, gde sorok let idyet voyna mezhdu Respublikoy Il"zar i Imperiey Sherts. V voyne ischezayut vzroslye, deti vyrashchivayutsya iskusstvenno i voyuyut s vos"mi let. S pomoshch"yu naparnika Dzho L"yuisa Danila vyyasnyaet, chto Zemlya — odin iz semi mirov sistemy, nekim obrazom svyazannykh i vzaimovliyayushchikh, i ego missiya linkera, agenta-svyaznogo, zaklyuchaetsya v prekrashchenii voyny i proniknovenii v neizvestnyy dosele mir Okrainy. Danila i Dzho nakhodyat artefakt «Predmet Sily» i vstrechayut tret"ego linkera, filippinku Ginnever Rastavanara. Posle tyazhyelykh boyev oni vstrechayutsya uzhe v Tsentre, mire budushchego, otkuda posylayutsya v Imperiyu, gde u sherskikh zhretsov prokhodyat obuchenie kak magi i voiny. Danila stanovitsya linkerom-«khodtsom», prokladyvayushchim puti mezhdu mirami. Trio linkerov nakhodit zerkal"nuyu kopiyu «Predmeta Sily», pronikaet na Okrainu i ustanavlivaet prichinu voyny i ischeznoveniya vzroslykh iz mira Otrazheniya. Kniga adresovana erudirovannym otrokam (tineydzheram), zhelayushchim poskoree stat" vzroslymi, i ikh roditelyam, ne zabyvshim, chto v dushe oni — vsye eshchye deti.