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as bella and grace still in heaven with castiel
Castiel calls Sam and Dean in to interrogate one of Metatron's followers (Gordon Michael Woolvett). Sam and Dean are able to trick the prisoner into revealing that Metatron has a secret portal into Heaven for his followers and is amassing an elite ground force for an unknown reason. Before they can get more out of him, however, he is assassinated by a spy in Castiel's ranks. In response, Castiel meets with Gadreel (Tahmoh Penikett) to discuss him becoming a spy for his faction. Castiel is ambushed at the meeting, but Gadreel insists he had nothing to do with it. Castiel attempts to convince Gadreel that he is fighting for the wrong side and that he should become Castiel's spy. At the same time, Abaddon (Alaina Huffman) travels back in time to 1723 and kidnaps Crowley's son Gavin to use as leverage against him. Crowley agrees to help Abaddon kill the Winchesters and leads them to where he has hidden the First Blade, but secretly warns Dean of the trap. After sending Sam on a wild goose chase, Dean confronts Abaddon alone and succeeds in killing her, with theMark of Cainprotecting him from her powers. The Winchesters allow Crowley to live, but he teleports Gavin away so he won't be returned to his own time to die. In the aftermath, Dean refuses to be parted from the First Blade, claiming that it grants him a calmness and strength despite Sam's worries of what it's doing to him.
while in heaven cas and bella make love again and grace goes back to the bunker with her uncles