Ava did not leave the city... not yet.

The warning text had confirmed what William already suspected: someone was watching her.

If she boarded a train now, they would simply follow. She needed answers before she disappeared.

An hour later, she checked into another motel on the opposite side of the city. This one was older, cheaper and, more importantly, accepted cash without asking too many silly questions.

The elderly receptionist slid a key across the counter.

"Room 207."

Ava thanked him politely and climbed the stairs.

The room was modest, but clean. She locked the door, closed the curtains, checked beneath the bed, opened the wardrobe and looked behind the bathroom curtain. Only after satisfying herself that she was alone did she sit at the small wooden table.

William's envelope rested before her. She stared at it for a long time as his words echoed in her mind.

"Don't let anyone else have this."

He had never said she couldn't open it, only the writing on the envelope had.

For Ava. Open only when necessary.

Ava smiled bitterly. "If armed men are chasing it..." She rested her fingertips on the seal. "...I'd say it's necessary."

She carefully broke the wax seal.

Inside were three items: a handwritten letter, a brass key and an old black-and-white photograph.

Ava picked up the photograph first. It showed a much younger Edward Kingston standing in front of a large stone building. Beside him stood a little boy of about eight: Alexander.

On Edward's other side stood William. But there was someone else... a fourth person. The man's face had been deliberately scratched away; the photograph was neither torn nor faded with age... his face was simply scratched, as though someone wanted him erased.

Ava frowned."Who are you?" She turned the photograph over and on the back, written in Edward Kingston's elegant handwriting, were six words:

Trust no one without this mark.

Below the sentence was a simple drawing... a ring.

Its face bore the image of a phoenix rising from flames. Ava had never seen it before. She reached for the brass key, it was surprisingly heavy. Its bow was shaped like the same phoenix, the identical symbol.

Finally, she unfolded the letter. The paper had yellowed with age; the ink, however, remained remarkably clear:

To my future granddaughter,

If you are reading this letter, events have unfolded exactly as I feared.

You may wonder why I call you my granddaughter when we have never met. The answer is simple, any woman my grandson chooses with his whole heart becomes family the moment she accepts his love. Blood does not create loyalty, character does.

Ava felt her throat tighten, but she continued reading.

Alexander inherited many things from me: my name, my stubbornness, and my love for justice. Unfortunately, he also inherited my enemies.

There are people who would rather destroy my family than allow it to prosper. They are patient, and they smile while shaking your hand, they never strike until they are certain victory is within reach.

Ava read every word carefully.

William knows where the first key leads. Trust his judgment, but never place the entire burden upon his shoulders. One day, you will have to make decisions without him.

A tear rolled down Ava's cheek. Edward had written this years before his death, yet it felt as though he were speaking directly to her. The final paragraph caught her attention.

There is a room beneath Kingston Hall that no living member of my family knows exists. What rests inside is not treasure, it is truth. When the time comes, the phoenix will show you the way.

The letter ended with a signature:

Edward Kingston.

Silence filled the room. Ava folded the letter with trembling hands. "A hidden room..." She glanced at the brass key. "What exactly did you leave behind?"

A sharp knock at the door made her freeze.

Three knocks: firm, measured, exactly like William's. Hope surged through her chest and she hurried to the door. "Mr. Carter?"

No answer. She looked through the peephole, it was only a hotel employee who stood outside carrying a tray. "Room service, ma'am."

"I didn't order anything," Ava replied cautiously.

The employee smiled politely. "A gentleman downstairs asked us to deliver this to you."

Ava didn't unlock the door. "Which gentleman?"

"He didn't leave his name."

Her instincts screamed. "No, thank you."

The employee's smile vanished... For the briefest second, then it returned. "As you wish."

His footsteps retreated down the hallway.

Ava waited until she could no longer hear them, then looked through the peephole again, this time, the corridor was empty, completely empty. She frowned, something wasn't right. How could there be no trolley, no tray, no hotel employee just how many seconds later? He had vanished far too quickly.

Her phone vibrated me a notification appeared from the tracking app. The signal from the fake envelope had started moving again, but this time, it wasn't heading away from her... It was coming straight towards the motel.

Ava's eyes widened. "They know."

Almost at the same moment, someone slid a thin white envelope beneath her door, it came to a stop at her feet. There was only one sentence written across the front in neat black ink:

Mrs. Kingston... we would like our envelope back.