Tally and Luka Relations

Description/History
Joe and Caroline's relationship with Luka may be one of the weakest in the series. The tallies meet Luka via the rest of the group. Luka and the Tallies have had substantial conversations about politics before and Caroline and Luka talked more during the Research Paper plot in the fifth book. Famously at one point one, Caroline's longest conversation with Luka consisted of her saying "What's up?" and Luka holding up a bill and saying "Money." Caroline, Joe and Luka have their moments but they a few and far between.