Povest' sochinyalas' dlya detey let 10 i starshe, no s udovol'stviem chitaetsya v lyubom vozraste. Kak polozheno v detektive, syuzhet napryazhyen, vrag kovaren, razvyazka neozhidanna, Obo vsyem rasskazyvaetsya yakoby vser'yez, no chitatel' khokhochet, ponimaya, chto glubokomyslennye nazidaniya i uchyenye raz"yasneniya, uzhasy i opasnosti - na samom dele splosh' rozygryshi. Shpion okhotitsya za sekretom pistoleta, strelyayushchego probkoy, taksist vozit passazhirov na palochke, peredatchikom sluzhit rezinovaya igrushka-pishchalka. Smeyas', deti ne zamechayut, chto ikh eshchye i uchat dobru i mnogomu prochemu, chto nuzhno v zhizni.