The Servant of Lord Voldemort

           Hermionescreamed.Blackleapttohisfeet.Harryfeltasthoughhe’dreceivedahugeelectricshock.

           "IfoundthisatthebaseoftheWhompingWillow,"saidSnape,throwingthecloakaside,carefultokeepthiswandpointingdirectlyatLupin’schest."Veryuseful,Potter,Ithankyou...."

           Snapewasslightlybreathless,buthisfacewasfullofsuppressedtriumph."You’rewondering,perhaps,howIknewyouwerehere?"hesaid,hiseyesglittering."I’vejustbeentoyouroffice,Lupin.Youforgottotakeyourpotiontonight,soItookagobletfulalong.AndveryluckyIdid...luckyforme,Imean.Lyingonyourdeskwasacertainmap.OneglanceatittoldmeallIneededtoknow.Isawyourunningalongthispassagewayandoutofsight."

           "Severus—"Lupinbegan,butSnapeoverrodehim.

           "I’vetoldtheheadmasteragainandagainthatyou’rehelpingyouroldfriendBlackintothecastle,Lupin,andhere’stheproof.NotevenIdreamedyouwouldhavethenervetousethisoldplaceasyourhideout—"

           "Severus,you’remakingamistake,"saidLupinurgently."Youhaven’theardeverything—Icanexplain—SiriusisnotheretokillHarry—"

           "TwomoreforAzkabantonight,"saidSnape,hiseyesnowgleamingfanatically."IshallbeinterestedtoseehowDumbledoretakesthis...Hewasquiteconvincedyouwereharmless,youknow,Lupin...atamewerewolf—"

           "Youfool,"saidLupinsoftly.