Total Number of Books: 3,462
Unbroken Bonds (The Bonds that Tie Book 6)
Unchanged (Unremembered, #3)
Uncrowned (Cradle, #7)
Underground America
Underlord (Cradle, #6)
Undertale: Surviving the Underground
Under the Banner of Heaven
Underworld (Abandon #2)
UnDivided (Unwind Dystology Book 4)
Unicorn Bowling (Phoebe and Her Unicorn Series Book 9)
Unicorn Crossing (Phoebe and Her Unicorn Series Book 5)
Unicorn Famous (Phoebe and Her Unicorn Series Book 13)
Unicorn of Many Hats (Phoebe and Her Unicorn Series Book 7)
Unicorn on a Roll
Unicorn Playlist (Phoebe and Her Unicorn Series Book 14)
Unicorn vs. Goblins (Phoebe and Her Unicorn Series Book 3)
United (Alienated #3)
United as One (Lorien Legacies #7)