Asmak, it is really a pity to end up relationships with anybody on this sad tone, especially if someone is like a family member...just let her go, probably she didn't feel your friendly attitude if instead of saying goodbye and ending up the contract , she preferred to escape...it looks like she felt more like a slave...
anyway don't be afraid that she may be back to steal more from you, I think she will never ever approach your house, she will probably stay at least hudreds of km's from it..to me it sounds a bit strange: you are apprehensive that she may steal smth while you are travelling with your family, why then you tell the whole world on the internet that you are going to travel soon...???? it would probably be wise to keep it a secret...anyway, be forgiving and kind and have a happy holiday! and let the God be her judge