Lena's hands trembled as she unfolded the letter she'd found wedged between the floorboards of her grandmother's attic. The paper was yellowed, the ink faded but still legible. It was dated three days before her grandmother died.
My dearest Lena,
If you're reading this, you've found the first clue. I'm sorry I couldn't tell you in person—they were watching too closely. The inheritance I left you isn't money. It's something far more valuable, and far more dangerous.