You say this is the opening to a novel? This is awful short to be the opening to a novel. Do you mean a summary? It is very good but there are a few things that need to be changed. In the third sentence you need to capitalize the I. In the next sentence, instead of using the word unseeable, the word invisible would be more appropriate. Also it would seem that the end of that sentence should come after eye and a new one should begin with Even. Your adverbs are unnecessary. The word strangely adds nothing, nor does completely. When it comes to ly words that is how I guage whether they are needed if the sentence reads well without it then take it out because ly words tend to slow down your work. Right after whilst, capitalize that I. The phrase "two times" table is just awkward, a better phrasing might be her multiplication table. It says the same thing but without the bulky and awkward wording.

This is a very good introduction, but I'm not sure if this is a summary or an opening paragraph or what it is.You might want to give clarification on that because I came here expecting a chapter and was extremely confused by this short snippet.

Keep up the great writing.

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