▁in ▁divor ce ▁in ▁ 1 9 0 2 . ▁ ▁In ▁ 1 8 9 2 , ▁he ▁became ▁a ▁member ▁of ▁the ▁Ha ags che ▁Kunst k ring ▁and ▁joined ▁Ar ti ▁et ▁Am ic it iae ▁in ▁ 1 8 9 3 . ▁That ▁same ▁year , ▁he ▁produced ▁an ▁illustrated ▁edition ▁of ▁The ▁U gly ▁D uck ling ▁by ▁Hans ▁Christian ▁Anders en , ▁followed ▁by ▁several ▁more ▁bird - th emed ▁picture ▁books . ▁ ▁He ▁continued ▁to ▁move , ▁rest lessly , ▁first ▁to ▁Voor burg ▁then , ▁in ▁ 1 8 9 7 , ▁to ▁Hil vers um . ▁For ▁a ▁time , ▁he ▁stayed ▁with ▁family ▁members ▁in ▁London . ▁His ▁health ▁became ▁frag ile ▁and ▁he ▁was ▁hospital ized ▁for ▁much ▁of ▁ 1 9 0 4 ▁and ▁ 1 9 0 5 . ▁He ▁also ▁spent ▁a ▁short ▁time ▁at ▁a ▁psych iat ric ▁san ator ium . ▁When ▁released , ▁he ▁went ▁to ▁live ▁with ▁a ▁sister ▁in ▁The ▁H ague ▁and ▁remained ▁there , ▁under ▁her ▁care , ▁for ▁the ▁rest ▁of ▁his ▁life . ▁ ▁Despite ▁his ▁ill ness , ▁it ▁was ▁during ▁this ▁period ▁that ▁he ▁created ▁the ▁cal end ars ▁that ▁made ▁him ▁famous . ▁His ▁designs ▁also ▁formed ▁the ▁basis ▁for ▁pot tery ▁and ▁furn iture . ▁He ▁and ▁his ▁wife ▁were ▁the ▁models ▁for ▁the ▁main ▁characters ▁in ▁Leo ▁en ▁Ger da ▁( 1 9 1 1 ), ▁a ▁novel ▁by ▁ ▁about ▁the ▁generation ▁of