"One down," the Source said menacingly looking at the sisters, "she'll die son, and you'll join her," he threw the fireball at Piper and Paige, but the eldest blew it off in midair, unfortunately for them the force of the explosion threw them back a few feet, Piper checked on Paige who was still unconscious but barely alive.

"You can't stop me," the Source said while laughing.

"Piper the crystals!" Phoebe yelled, she managed to place a couple of crystals behind the Source and threw some more to Piper so they could lock him in the magical cage, the Source threw an energy ball this time to the eldest Halliwell before she could place the last crystal. Paige barely opened her eyes and saw that an unknown demon was attacking her sisters, she tried to stand up and help but the pain of the wound was almost unbearable. Piper and Phoebe still tried to lock him in but he was using all kind of powers on them to throw them away like they were ragging dolls, Paige saw the last crystal close to her, so slowly she crept through the floor unnoticed by everyone who assumed she was still out, reaching out an arm she placed the last crystal managing to trap the Source.

"No!" the Source screamed in anger, "next time I will kill you myself," he tried to get out but was zapped by the magical cage.

Piper and Phoebe injured went to their sister's side, Phoebe feeling very guilty when she saw the trail of blood Paige left on the floor when she took the crystal. Cole finally woke Leo up, and as soon as he saw what was happening he pulled Cole with him towards the sisters and orbed away to Paige's house leaving the Source trapped although they all knew he wouldn't stay there for long.

Once they were safe in Paige's place, Leo healed the youngest who was losing strength every second, when she was totally healed Phoebe launched herself at her younger sister's arms, "I'm sorry, so sorry," she repeated over and over not letting Paige go.

"Is ok, I'm okay," Paige simply said, "who was that dude back there?"

"The Source… are you sure you're okay? We almost lose you," Leo said while he was healing his wife.

"That's the Source?! Man he is ugly," Paige replied, "and yes, I am fine, see?" she walked apart from Phoebe and showed them her healed stomach.

Phoebe approached Paige to make sure she was fine but the youngest brushed her off, Paige knew Phoebe didn't hurt her on purpose but still it hurt her seeing so much hate in her sister while attacking her, even though Phoebe wasn't seeing at Paige back then.

"I doubt he's still at the manor, we have to go back and find a way to vanquish him once and for all" Piper recently healed suggested.

Reluctantly they all orbed back to the manor, the attic was empty with no sign of the Source, the sisters looked through the pages of the book hoping to find something helpful when suddenly they heard a loud noise coming from downstairs.

Carefully they went to look what was it, the noise guided them to the basement, there the Source was standing near a hole on the ground and chanting, from the ground, black particles started to come out.

"The Hollow," Leo whispered in shock. The Source looked at them angry, he thought that they wouldn't be back soon, but now that they were, the Hollow didn't know where to go, it's supposed to go to the side who domains the manor, but being the Source and the Charmed ones under the same roof at the same time made a balance between good and evil that the Hollow wasn't leaning towards any, so it went straight into Cole's body because him being the only mortal in the place.

The Source threw an energy ball at Cole who absorbed it, then he used the absorbed power against the Source, he threw attack after attack to stop the demon.

"Go find something on the book, I'll stop him as long as I can!" Cole said and the sisters hurried back upstairs to the attic.

"We could make one of our strongest potions but I don't think that will be enough," Piper said while running up the stairs.

"Maybe we can improvise a spell to work along the potion," Phoebe added right behind Piper.

"Isn't there anyone that we can call for help?" Paige said when they were entering the attic, just then, the pages of the book started flipping by themselves, stopping at a spell that wasn't there before.

The sisters looked at the page and Piper touched with care the end of the page which read –For my sisters- "Prue," Piper whispered.

"A spell to call on our ancestors power… thank you Prue," Phoebe said looking up.

Paige placed a hand on each sister's shoulder and orbed them with the book to the basement, immediately they started chanting the new spell, "Prudence, Penelope, Patricia, Melinda, Astrid, Helena, Laura and Grace, Halliwell witches stand strong beside us, vanquish this evil from this time and space," the three said together and watched in satisfaction how the Source screamed in agony and exploded leaving no sing of ever existing, his essence being absorbed by the Hallow.

When they thought it was over, the Seer appeared in front of them.

"Now what?" Piper said tiredly, "who are you?"

"For now, an ally," the Seer said, she kneeled to pick a box which was supposed to contain the Hollow, "if you don't return it to where it belongs it'll consume Cole, then you, then the balance will be lost and that's something that neither good or evil sides can afford."

"How do we put it back?" Phoebe asked referring to the Hollow.

"Good and Evil must work together, read the inscription with me.

Phoebe stood next to the Seer and both read what was on the box, "Abolio exume ga ume to eternius," the box started to glow and took back all of the Hollow from Cole and went back to its place underground, what they didn't know is that secretly before coming, the Seer cast a spell over the Source's essence so it would be transferred, and she found a perfect vessel in the empty space that was left in Cole after Belthazor was vanquished from him.

The Seer returned to her lair, her eyes turned white when she started to see the future and an evil grin appeared on her face.

Back at the manor, the sisters were recovering from everything that just happened, they were still shaken because of what Barbas did and facing the Source on the same day wasn't helpful.

"So," Paige broke the silence, "this spell came from Prue?" she asked as she placed the book back on its place.

"Looks like she is still taking care of us," Piper said gratefully.

"I wish I had known her," Paige said softly, her sisters hugged her but she broke the embrace after a moment, she didn't know why she felt scared of Phoebe mostly but she wasn't going to say anything.

"Why don't we go out and celebrate? I mean, we vanquished the Source of all Evil, that's something you don't see every day," Paige suggested, and everyone agreed.

A while later the five were at P3 laughing and chilling, although Cole said he was feeling strange, they assumed it was because of the effect of having the Hollow for a while, no one noticed how for a moment Cole's eyes turned like fire.