Though we never really got to meet Eli he's the one running the show in Part & Parcel
Nick is still recovering from the injuries he sustained in Miami you know where he almost died D: (that was terrifying) on a particularly dreary day he finally opens the box that Eli's mom gave him forever ago and discovers some hard to read letters hand written by Eli himself instructing him to assemble the gang for a road trip.
Throughout the whole painful trip through feels land Nick and Kelly work out their problems in their relationship, Ty is Ty and Zane is Zane.
This book was pretty cool it not only focused on Nick and Kelly but the whole group we learn what Ty and Zane are up to and some new stuff on Owen and Digger oh and there's kittens! Ty brings his kittens along on the road :D lots of cute.