Short story - looking glass river

I based my short story on the poem of looking glass river. This poem inspired me by the double meaning in the poets words, he displays a calm, beautiful river with entracing fish and everliving tranquility but beneath his words I have invisaged a sort of mystery, that every thing in the looking glass river is not as it seems, that beneath the water lillies and array of coloured fish there is an endless depth of blackness pulling in all that come near it. therefore although R.L stevenson's poetry is calm and beautiful there is an air of mystery beneath every line!