Disclaimer: If I owned Lyra and friends, why would I be here? My point exactly.
Reunion
Lyra sighed as she slowly walked up to the river. She knew where she was; she had left Pan here decades ago. Then she, Lady Salmakia, Lord Tialys, and Will went on the boat to who-knew-where. Speaking of the boat, where was it? The boatman must be taking someone else. Lyra thought, I might as well sit. She didn't quite feel the movement of her own body, a tribute to the fact that she was dead. At least she had a reflection in that river. To her temporary surprise, though, was who stared back; she looked so young! It was the Lyra that fell in love with Will, the Lyra she always wanted to be ever since.
Teardrops blurred the image as she thought of life without will. After staying at St. Sophia's School and Jordan College, she left lo travel the world, while studying the alethiometer. Her journey ended at Svalbard, where she came across Iorek Byrnison. They thought that they had a spot of affection for each other, but lived together for only a few months. Lyra still hurt too much to love again, and besides, it felt like one would feel if they were to marry their parent. Lyra headed for Jordan College, becoming very sick. On Midsummer's Day, in the gardens, she could barely breathe. At exactly twelve, Lyra Silvertonge died on a bench that was so precious to her at age forty- three.
The water settled, and Lyra let out a gasp as she saw Will's reflection next to her own. She spun around into his arms, letting out a cry of joy. He looked just as she remembered, not to mention just as surprised as her.
The boatman chose that time to come and take them to the land of the dead. The couple held each other close, making a silent promise not to let go. They stepped out, still clinging together, and made for the beautiful land. There, their particles blew apart, but each piece of Lyra found a piece of Will and held on refusing to let go. The lovers were reunited.