question about Baxia

How did Wen Ning get Baxia? The last time we saw him, he was running towards the clouds of resentful energy. Then, in this episode, he comes towards the temple, dragging the actual physical sword, and yes the blade spirit is possessing him, but he's still holding the real sword.So where did he get it? The last time we saw it, was when WWX's paperman was communicating with MingJue's severed head (the things I type for this show!). Was it still at Jinlin Tai?I know in the novel WN fought NMJ's fierce corpse, but that's not what happened here. Can someone help?