<P> Melinda is at Delia's when she realises that one of the girls in Ned's study group is being haunted . After a sleepwalking incident, Mel and Eli try to work out who the ghost is and what he wants . Eli's friend Zoe (who told him about Voodoo in the previous episode) recognises the hauntings as Vampire Myths, leading Mel to wonder if Serena knew the ghost, and whether she was into Vampires . When she tries to ask her about it, Serena ends up thinking Vampires are real, and is surprised when Mel reveals she was talking about a ghost . The ghost leads Serena to his crypt after she says she wants to see him, and Mel has to race against time to get there and get her out of the sealed crypt before all the oxygen runs out . Also, Mel and Jim plan their second wedding - with Jim as Sam . </P> <Tr> <Th> 85 </Th> <Td> 23 </Td> <Td> "The Book of Changes" </Td> <Td> John Gray </Td> <Td> John Gray </Td> <Td> May 15, 2009 (2009 - 05 - 15) </Td> <Td> 9.15 </Td> </Tr> <Tr> <Td_colspan="7"> Melinda's mother hires a wedding planner who completely ignores what the couple want . Someone breaks into the University Library and then Zoe's house, but is interrupted by Eli . The thief only stole one book - called' The Book of Changes' by the Watchers . It has important dates in it, such as previous deaths and Melinda's due date, which is why Carl the Watcher tells Eli not to let Melinda see or touch the book . Because the collection it was hidden in is being bought, the Watchers are trying to protect it . Melinda keeps getting visions of a faceless girl holding the book and saying that Mel's future is in' her' hands and that Mel can't save' her' . Mel is scared for her unborn baby, especially when she learns that it will be able to do much more than her (with their gift). Jim and Mel have a quiet wedding on the street where they first met, with only Delia and Eli in attendance, and Jim calls it a renewal of everything they already had and have . Mel is told she has lots of white light around her - spirits protecting her, but if the balance slips, that could change . Eli becomes' The Book of Changes' new caretaker . </Td> </Tr>

What episode does jim get his memory back in ghost whisperer