▁certainly ▁not ▁for ▁another ▁ 3 ▁years . ▁In ▁ 2 0 1 5 , ▁Hor ow itz ▁stated ▁in ▁a ▁newspaper ▁interview ▁that ▁there ▁would ▁be ▁at ▁least ▁another ▁ 6 ▁books ▁written ▁by ▁him ▁before ▁continu ing ▁the ▁Diam ond ▁Brothers ▁series . ▁ ▁In ▁ 2 0 0 4 , ▁Hor ow itz ▁branch ed ▁out ▁to ▁an ▁adult ▁audience ▁with ▁The ▁K illing ▁Jo ke , ▁a ▁comedy ▁about ▁a ▁man ▁who ▁tries ▁to ▁track ▁a ▁jo ke ▁to ▁its ▁source ▁with ▁dis astr ous ▁consequences . ▁Hor ow itz ' s ▁second ▁adult ▁novel , ▁Mag pie ▁Mur ders , ▁is ▁about ▁" a ▁wh od unit ▁writer ▁who ▁is ▁murder ed ▁while ▁he ' s ▁writing ▁his ▁latest ▁wh od unit ". ▁Having ▁previously ▁spoken ▁about ▁the ▁book ▁in ▁ 2 0 0 5 , ▁Hor ow itz ▁expected ▁to ▁finish ▁it ▁in ▁late ▁ 2 0 1 5 , ▁and ▁it ▁was ▁published ▁in ▁October ▁ 2 0 1 6 . ▁ ▁In ▁August ▁ 2 0 0 5 , ▁Hor ow itz ▁released ▁a ▁book ▁called ▁R aven ' s ▁Gate ▁which ▁began ▁another ▁series ▁entitled ▁The ▁Power ▁of ▁Five ▁( The ▁Gate keep ers ▁in ▁the ▁United ▁States ). ▁He ▁describes ▁it ▁as ▁" Alex ▁R ider ▁with ▁w itch es ▁and ▁dev ils ". ▁The ▁second ▁book ▁in ▁the ▁series , ▁Ev il ▁Star , ▁was ▁released ▁in ▁April ▁ 2 0 0 6 . ▁The ▁third ▁in ▁the ▁series ▁is ▁called ▁Night