Gideon was definitely there, never one to turn down a chance to go to a party. He did invite Wilda, so he might have arrived wit her (will plot that out more later). Assuming that Riona wouldn't have enough alcohol for the event, Gideon brought a whole bunch more to stock up just in case. As for his costume, he came as Elwood from the Blue's Brothers to Heath's Jake.
He talked to just about everyone that came up to him, or whomever he wanted to talk to or flirted with. Mingled, and enjoyed Riona's food - even though he does like the Indulgent Tart's food better (Sorry!). And went into a few renditions of "Soul Man" to go with the costume. He does not have an amazing voice like Myron, but Gideon can hold a tune.
As the night continued on, Gideon drinks far too much, obviously becoming very drunk. And before the end of the party, Heath and Gideon disappear from the party without notifying anyone.