Becausetheeffectofhennaisalsomodifiedbytherealcolourofthehairbeh.Thisiswhatitdoestowhitehair:

    InTurkey,inasmalltrytownwithalineofpoplartreesalongthehorizonandadirt-flooredsquare,chis,motorbikes,apricotsellers,anddonkeys,awomanwashagglingforthosesesame-seed-coatedbraceletsofbreadyouwearonyourarm.Fromtheback,shewassmallandslender;shewaswearingloose,dark-bluetrousersinapeasantprintandascarfwoundroundherhead,butfrombehisscarftherefellthemostwonderfullong,thick,Rapunzel-likeplaitofgoldenhair.Puregold;goldasaweddingring.Thissingleplaitfellalmosttoherfeetandwasasthickasmytwoarmsheldtogether.Iwaitedimpatientlytoseethefaceofthisfairy-talecreature.

    Stringingherbreadsonherwrist,sheturned;andshewasold.

    "Whatalife,"saidLetty,asIbedherhair.

    OfLettyslifeIknownothing.Iknowowothingsabouther:howlongshehaslivedinthisbasement--sincebeforeIwasborn,howsheusedtolivewithanolderbrother,wholookedafterher,anolderbrother.Thathe,lastNovember,felloffabus,whattheycalla"platformact",fellofftheplatformofamovingbuswhenitslowedforthestopatthebottomoftheroadand,falling,irreparablycrackedhisheadoone.

    LastNovember,justbeforetheplatformact,herbrothercameknogatourdoortoseeifwecouldhelphimwithalightthatdidnotwork.Thelightintheirflatdidnotworkbecausethecablehadrottedaway.Thelandlordpromisedtoseributtheelectrievercame.Lettyandherbrotherusedtopaytwopoundsfiftypenceaweekrent.Fromthelandlordspointofview,thiswasnotaneit;itwouldnotcoverhisexpehehouse,ratesetthepoin