Wyatt and Leo materialized on the other side of the altar from Tempus, the four girls in the small clearing between the stone pillars.
"We can't let you do this Tempus." Leo said, reaching over to take the knife.
"You can't stop me." He replied, and with a flick of his wrist, froze Leo in place.
At that moment he looked up and saw the four girls trying to decide which pillar to stand in front of. He flicked his wrist again and they froze as well.
Just then, Tim shimmered in behind Leo and with a flick of his wrist unfroze all of them.
"You can't do this Tempus. You'll destroy everything, and you know it." Tim said, countering all of Tempus freezes, causing Leo and the girls to freeze and unfreeze.
"I am tired of being the demon of Time. The Source used me like a puppet whenever he needed anything, which included killing that witch over there." He said, indicating Prue.
Wyatt was the only one unaffected by the freezing and unfreezing of those around him. While it was going on he started to untie Serena from the table. What neither Wyatt nor Tim noticed was that Tempus pulled an athame from a pocket in his robe.
With a flick of the wrist, he threw the weapon which imbedded itself in Tim's stomach, causing him to collapse to the ground. Tempus then used power he didn't know he had to fling Wyatt to a far corner of the clearing.
"Cronos, great deity of time, accept this, my final sacrifice to you, and close the portal of time. Great oblivion will be mine." He said, and shoved the knife into Serena's heart.
With her death, the circle below the table began to glow, and spin, creating a vortex of black clouds that began to rise up from the hole.
The Charmed Ones instantly unfroze and took their positions at the four stone pillars. Wyatt rose from where he'd landed and raced to the hole, which had sucked up the altar itself.
Tempus moved to stop him from doing anything, when Tim threw the knife he'd pulled from his stomach. The knife thudded into Tempus leg, causing him to stagger back a few steps, then fall.
"Recite the spell, it's our only hope." Tim shouted, before collapsing in pain.
"He who seeks to stop times pace, Will not continue in this place, We who stand, directions four, Will not let you close the door, Evil will not cease this flow, Time will cause you now to go. No matter what you try to do, Destruction will now come to you." All four girls recited the spell in unison.
"It's not working." Piper said, horrified that the hole was expanding, the black tendril clouds climbing higher from it.
Wyatt looked up from where he'd pulled Tim away from the hole. He looked back at the girls, an unreadable expression on his face.
"Keep reciting the spell. I'll try to hold the portal from expanding." He said, and levitated himself over the dark abyss.
Piper watched him carefully, still reciting the spell with her sisters. He floated there, and then seemed to shed off swirls of light, which the abyss absorbed. Whatever he was doing it seemed to be doing the trick. The great black void wasn't expanding any further, and the black tendril clouds were in fact sinking back into it.
As the four women recited the spell one last time, the hole contracted violently, sucking in not only Tempus but Wyatt as well.
"Not my baby!" Piper screamed, running over to the spot, collapsing, and beating the now solid ground with her hands.
Leo came over and pulled her up from the Earth, holding her tight while she sobbed out her pain.
Meanwhile, Paige went over and healed Tim's stomach wound. The three sisters stood around Piper and Leo, tears escaping their eyes as well. They then moved in for a family hug.
Tim put his arms around the group, and they vanished from the monument, reappearing in the attic of the manor.
Several hours later, Leo was still consoling Piper, who didn't want to get up from her bed. Prue, Paige and Phoebe were sitting in the living room trying to make sense of all of it.
Tim shimmered in behind the couch, "Well everything's been restored. The site has been hidden again by fresh magic. No one will be able to find it for centuries at least. "He said, noticing their long faces.
"Girls, what Wyatt did he did of his own free will. No one asked him to sacrifice himself, but it was that sacrifice that saved us all." He went on.
"We know, but it doesn't make it any less painful. In the new timeline Piper doesn't even have a child. This whole thing is killing her, and I don't know that I can stand to watch it." Prue said, rising from the couch and heading up the stairs.
Tim followed behind her, and pulled her aside at the top of the stairs for a brief conversation.
Meanwhile the front doorbell rang. Phoebe got up off the couch and went to answer it. Standing on the porch was a woman in her mid forties, who looked vaguely familiar to her.
"Can I help you?" She asked the mysterious woman.
"Yes, Phoebe you can. I'm Jenny, do you remember me?" She asked, taking off her sunglasses.
"Oh my God, Jenny. Boy do you look different." Paige said, after coming up behind Phoebe in the foyer.
"Yes, well the last twenty years have been interesting I'll admit that. Is Wyatt here?" She asked, as the girls stood aside to let her in.
"I'm afraid he was lost when we tried to stop Tempus." Paige said, hating to be the one to break the news to her.
Jenny was visibly shaken by the news. The girls brought her into the living room and sat her down in a chair. Paige ran off to the kitchen, coming back with a glass of water for her.
"How are Piper and Leo? They must be devastated." Jenny said, taking the water from Paige.
"They've been upstairs since we got back. Prue just went up to see how they were doing." Phoebe said, looking to Paige for something else to say.
"He gave me a note, just like Leo did when he told me to come here all those years ago. He insisted you all needed to read it." Jenny said, pulling an envelope from her bag.
"I'll see if Piper and Leo will come down." Paige said, and ran upstairs to get them.
"How difficult has it been for you living in the past like that?" Phoebe asked.
Jenny stood up and began to pace around the living room, "The hardest part for me was not changing events even though I knew what was going to happen. I simply created a life for myself, as far away from the one I had as possible. I did visit myself in high school once. In fact I gave myself a ride to school. The funny part was that as I was living it, I was remembering it also from the perspective of my younger self." She finished just as Prue, Piper, Leo, Paige and Tim came around the corner from the stairs.
"Piper, I'm so sorry for your loss." Jenny said, crossing the room to hug her.
"Wyatt gave me this before he left. I think it's for you." She said, handing the grieving mother the envelope.
With tears in her already swollen eyes, she took the envelope and opened it. A gold shimmery light emanated from it and formed in an empty corner of the living room into Wyatt.
"Mom, if you're seeing this, then something has happened and I'm no longer with you. I want you to remember that I always knew my life would come to something like this. When the crone touched me all those years ago, I not only showed her a vision of the future, she shared a vision with me also. Even though we didn't have much time together, I want you to remember that I love you with all my heart." He said, looking directly at her.
"To the rest of you, I want you all to know that the incredible good you've done all these years, and the sacrifices you've made have not been in vain. You have made the world a safer place for us all. My only regret is that I only have my one life to give for that." He continued.
"Jenny, you have been an incredible surrogate mom to me all these years. I can't imagine how I would have turned out without your loving guidance. Someday we will all be reunited. Blessed be." He finished, and disappeared.
Piper buried her face in Leo's shoulder, the sobs so wracking her small frame she could barely stand up.
"Why did this have to happen? I wish Tempus were still around, so I could kill him again for taking my only child away from me." She screamed to no one in particular.
"Piper I love you. Everything will be alright. We're all here for you." Leo said, holding her tightly and rocking back and forth.
Phoebe looked over and saw Prue sliding away from the group, with Tim in tow. The look on Prue's face told her all she needed to know. She winked at her older sister and turned to Piper to rub her back.
Prue took one long last look at all of them, and shimmered away with Tim. A moment later, Paige looked around the room.
"Where's Prue?" She asked.
Piper finally looked way from Leo's chest, where she'd dampened his shirt with tears, her eyes circling the room, "And Tim?" She asked.
Just then it hit, the same kind of shockwave that hit them before. The manor only changed in subtle ways, the rooms returned to their previous colors. Each of them changed also, back to the appearance they'd had before. Jenny and Leo disappeared entirely. The girls looked around and realized the timeline had been restored to what it had been before.
Barely having time to take that in, Tim shimmered back into the room with Jenny and Wyatt.
"My baby!" Piper yelled, and took him from Jenny, crying.
"What the hell happened?" Paige asked, looking confused.
"I think I know." Phoebe answered, "Prue went back didn't she? She sacrificed herself so this timeline could be restored."
"Yes she did. She knew losing her son was killing Piper. She also knew she was the reason that Wyatt wasn't born in that other timeline, so she agreed to go back and be killed by Shax, so this version of reality could continue." Tim said, a sad look in his eye.
"What about Tempus, the Cursed Ones, did all that happen?" Paige asked, still looking confused.
"Tempus is definitely gone, the Portal of Time destroyed him completely. Although I suspect the Underworld will simply create a new demon of Time. Can't have things uneven for long." Tim explained.
"As for the Cursed Ones, they are still out there, but they are down a sister as well, so there's a level playing field." Tim continued, smiling at all of them.
"Now I have to go, things to do, that sort of thing. Leo and the other Elders will want a full report of what went on here. Take care of each other." He said, and shimmered out.
A few days later, when Piper found herself again in the mausoleum, staring at the stone that simply read "Prue Halliwell 1970-2001" she couldn't help but smile. Both Prue and Wyatt had proven they were willing to make the ultimate sacrifice, so what she'd given up, losing Prue, and then Leo, didn't seem quite so hard to bear anymore.
Putting Wyatt back into his stroller, they left the cemetery together.