It fairly obvious, on Christmas Eve as the new girl Murphy has to accompany Kringle on his duties wearing the Elf costume. It actually fits her, which means she would be in the foulest of moods. This is why Gard wanted to recruit her in the first place, she hated that too small costume, and would never have to wear it again.

A cogent lesson in Faustian pacts, read the small print.

Probably the Merlin, told by Luccio that he is Harry’s brother, setting up Harry to be killed by Eb using Thomas as bait. The Merlin doesn’t know Eb is their grandfather. It would be a very Merlin thing, he tried something similar with Morgan, but no one else really wants to take on Harry anymore amongst the wardens. The Merlin would be delighted if Harry took out Eb in the process whether Harry survived it or not.

Of course Mab is behind it to remove Langtrey as Merlin/cause the formation of the Grey Council as a force under the accords. One of the favours owed to Mab is the knowledge via Justine that Luccio knows about Thomas (but doesn’t know about Eb)

For protection from the White Court, it is to love and be loved in return. Harry loved all the women he has been romantic with, not all of them loved him back. Michael and Charity would both be protected, Susan and Harry were, and Thomas and Justine are about the only couples we have seen who qualify.

Kemmler would have had Bob seek intelligence of McCoy during his possession of Bob and integrated that with existing info, which was hived off.

In rescuing Thomas as a favour, it will be in accordance with the Mantle DESPITE Mab’s publicly professed position during the peace talks themselves. This is why Mab did it, she can manipulate everyone without telling a lie.

Remember that Luccio knows about Thomas, I think this is the major betrayal, she tells the Merlin and he sets up the situation where Harry and Eb have to throw down over Thomas. What neither Luccio or the Merlin know is that Eb is Harry and Thomas’ grandfather. Mab knows, she is engineering this confrontation to cause a split in the White Council, probably to get rid of Christos and the Merlin, making Eb the new Merlin or the formal creation of the Grey Council as a new supernatural nation under the Accords taking Eb, Harry, Listens To Wind(I can’t help thinking this is a Blazing Saddles joke by Jim) Martha Liberty the Paranet and all the young wardens with him, splitting off the new world from the old.

The tag team of Lara and Mab suggests this type of machination by Mab, remember she had her own daughter killed in a similar circuitous fashion, and destroyed Nicodemus in a similar indirect  fashion. I suspect one of the favours was Lara introducing Mab to Marcone prior to Skin Game as being interested in revenge on Nicodemus.

Ebenezar McCoy is descended via the Master/Apprentice lineage from the original Merlin. What if it was also by blood? The way Eb treated Margaret hiding she was his daughter may be a family tradition. If so the McCoy name or variant could have been applied by Merlin to hide his son or grandsons identity, an ancestor of Eb. McCoy means son of Aodh, a Celtic fire deity, and there are a dozen or so variations in modern usage. This is before Bob became a Wizards Research Assistant, but he would have been around before then in Faerie picking up information until one day he picked up the wrong bit of info, so he could have seen the son/grandson etc staff, or several different generations staffs and had enough examples to compile a thematic style.

Getting Mab to break her word, which I am sure at some point Harry will do to kick off the Apocalyse.

You know it will be Harry’s fault.