▁rep ack aged ▁in ▁tw os ▁or ▁th rees ▁as ▁the ▁P ocket ▁Hor ow itz ▁series . ▁ ▁Hor ow itz ▁began ▁his ▁most ▁famous ▁and ▁successful ▁series ▁in ▁the ▁new ▁mill en ni um ▁with ▁the ▁Alex ▁R ider ▁nov els . ▁These ▁books ▁are ▁about ▁a ▁ 1 4 - year - old ▁boy ▁becoming ▁a ▁sp y , ▁a ▁member ▁of ▁the ▁British ▁Secret ▁Service ▁branch ▁M I 6 . ▁There ▁are ▁ten ▁books ▁where ▁Alex ▁R ider ▁is ▁the ▁protagon ist , ▁and ▁an ▁ele vent h ▁is ▁connected ▁to ▁the ▁Alex ▁R ider ▁series ▁( although ▁not ▁part ▁of ▁it ) ▁: ▁Storm bre aker ▁( 2 0 0 0 ), ▁Point ▁Bl anc ▁( 2 0 0 1 ), ▁S ke leton ▁Key ▁( 2 0 0 2 ), ▁E agle ▁St rike ▁( 2 0 0 3 ), ▁Sc orp ia ▁( 2 0 0 4 ) ▁Ark ▁Angel ▁( 2 0 0 5 ), ▁S nake head ▁( 2 0 0 7 ), ▁Cro cod ile ▁T ears ▁( nov el ) ▁( 2 0 0 9 ), ▁Sc orp ia ▁R ising ▁( 2 0 1 1 ), ▁and ▁the ▁' conne ctor , ▁Russian ▁Rou lette ▁( 2 0 1 3 ). ▁ ▁Hor ow itz ▁had ▁stated ▁that ▁Sc orp ia ▁R ising ▁was ▁to ▁be ▁the ▁last ▁book ▁in ▁the ▁Alex ▁R ider ▁series ▁prior ▁to ▁writing ▁Russian ▁Rou lette ▁about ▁the ▁life ▁of ▁Y assen ▁Greg or ov ich