▁S era f ina ▁and ▁the ▁Tw isted ▁Staff ▁is ▁an ▁American ▁historical ▁fiction ▁and ▁fant asy ▁novel ▁written ▁by ▁Robert ▁Beat ty ▁and ▁published ▁in ▁ 2 0 1 6 . ▁It ▁is ▁the ▁second ▁novel ▁in ▁the ▁S era f ina ▁Series ▁and ▁the ▁sequ el ▁to ▁S era f ina ▁and ▁the ▁Black ▁Clo ak . ▁This ▁book ▁continues ▁the ▁sp ook y ▁advent ures ▁of ▁twelve - year - old ▁S era f ina , ▁ ▁Chief ▁Rat ▁C atch er ▁of ▁the ▁B ilt more ▁Est ate , ▁as ▁she ▁works ▁with ▁best - friend ▁Bra eden ▁V ander b ilt ▁to ▁save ▁the ▁people ▁and ▁animals ▁of ▁B ilt more ▁and ▁the ▁surrounding ▁for ests ▁from ▁a ▁series ▁of ▁sin ister ▁attacks . ▁In ▁order ▁to ▁defeat ▁this ▁evil ▁entity ▁before ▁it ▁dest ro ys ▁her ▁home ▁and ▁those ▁she ▁car es ▁about , ▁she ▁must ▁search ▁deep ▁within ▁to ▁discover ▁and ▁em brace ▁the ▁dest iny ▁that ▁a wa its ▁her . ▁ ▁S era f ina ▁and ▁the ▁Tw isted ▁Staff ▁was ▁released ▁on ▁July ▁ 1 2 th , ▁ 2 0 1 6 ▁by ▁Disney ▁Hyper ion ▁and ▁deb uted ▁at ▁# 1 ▁on ▁the ▁New ▁York ▁Times ▁Best ▁S eller ▁list . ▁S era f ina ▁and ▁the ▁Tw isted ▁Staff ▁received ▁other ▁notable ▁recogn itions ▁including ▁ 2 0 1 6 ▁Bar nes ▁& ▁No ble ▁Best ▁Books ▁for ▁Young ▁Read ers ▁and ▁ 2 0 1 6 ▁Amazon ▁Best ▁Books