She took it up.

It must be the one Lizzie had wanted to throw away--she smiled at Lizzie's fears.

The address was badly typed, on cheap paper--she tore the envelope open and drew out a single unsigned sheet.
If you stay in this house any longer--DEATH.

Go back to the city at once and save your life.
Her fingers trembled a little as she turned the missive over but her face remained calm.

She looked at the envelope--at the postmark--while her heart thudded uncomfortably for a moment and then resumed its normal beat.