Essentially, I want to say something like: 
"If you read this, your will will be mine". (In a teasing way like, Who Reads This Is Stupid).

I 'distilled' it as much as possible to "reader beware: your will is mine". Which I (probably falsely) remember to initiate with "Cavea t, Lector...". 

But forums and Google Translate show me different words, leading me to compile nonsense like:

> 'cave lectorem tuus anima mea'

Partial translations I find online refer me to "your soul will be sorrowful". 

If anyone may please assist, with any verbs, tips, help or pointing me to the correct dictionaries/grammar: I will greatly appreciate every bit of input.