▁the ▁book ▁" one ▁of ▁the ▁permanent ▁class ics ▁in ▁the ▁detect ive ▁field .... ▁one ▁of ▁the ▁best , ▁not ▁of ▁the ▁year , ▁but ▁of ▁all ▁time ". ▁Dor othy ▁B . ▁Hugh es ▁also ▁pra ised ▁it , ▁saying ▁it ▁is ▁" not ▁only ▁one ▁of ▁the ▁most ▁important ▁myster ies ▁of ▁the ▁year , ▁but ▁of ▁all ▁years ▁of ▁mystery ". ▁The ▁novel ▁is ▁listed ▁as ▁number ▁one ▁on ▁the ▁C WA ' s ▁Top ▁ 1 0 0 ▁Crime ▁Nov els ▁of ▁All ▁Time ▁list ▁and ▁number ▁four ▁on ▁the ▁M WA ' s ▁Top ▁ 1 0 0 ▁Myst ery ▁Nov els ▁of ▁All ▁Time ▁list . ▁ ▁W inst on ▁Church ill ▁stated ▁in ▁his ▁History ▁of ▁the ▁English - Spe aking ▁Pe op les ▁his ▁belief ▁in ▁Richard ' s ▁gu ilt ▁of ▁the ▁murder ▁of ▁the ▁princes , ▁adding , ▁" It ▁will ▁take ▁many ▁ingen ious ▁books ▁to ▁raise ▁the ▁issue ▁to ▁the ▁dign ity ▁of ▁a ▁historical ▁controvers y ", ▁probably ▁referring ▁to ▁T ey ' s ▁novel , ▁published ▁seven ▁years ▁earlier . ▁The ▁papers ▁of ▁Sir ▁Alan ▁Las cell es ▁contain ▁a ▁reference ▁to ▁his ▁conversation ▁with ▁Church ill ▁about ▁the ▁book . ▁ ▁Ada pt ations ▁There ▁have ▁been ▁two ▁radio ▁adapt ations ▁broadcast . ▁First ▁in ▁ 1 9 5 2 ▁( script writer ▁not ▁cred ited ) ▁and ▁on ▁ 2 5 ▁December ▁ 1 9 8 2 ▁on ▁BBC ▁Radio ▁ 4 ▁FM ' s ▁Af