Kometa priletaet

Znamenitaya detskaya pisatel'nica Tuve Yansson pridumala mumi-trolley i ih druzey, kotorye vskore proslavilis' na ves' mir. Ne otkazyvayte sebe i svoim detyam v udovol'stvii - zaglyanite v gostepriimnuyu Dolinu mumi-trolley. V Doline mumi-trolley vse vremya chto-nibud' proishodit. Inogda zabavnoe, inogda ochen' opasnoe. Vot i seychas, kogda vrode by nichto ne predveschalo bedy, vdrug okazalos', chto na Zemlyu grozit obrushit'sya ogromnaya, strashnaya Kometa! Chto zhe budet s Dolinoy, uyutnym domikom mumi-trolley i vsey Zemley? Odna nadezhda, chto professor v tainstvennoy gornoy observatorii podskazhet, kak byt'. I Mumi-troll' so Sniffom otvazhno otpravlyayutsya v dalekiy put', gde im predstoit mnozhestvo priklyucheniy i sud'bonosnyh vstrech.