is　a　second　car　with　a　lady　in　it。　If　you　turn　your　head　you　will　see　her。〃

Derek　spun　around。　His　face　darkened　with　anger。

〃Mirelle；　damn　her！〃　he　muttered。　〃I　will　soon　…〃

Poirot　arrested　the　movement　he　was　about　to　make。

〃Is　it　wise　what　you　are　about　to　do　there？〃　he　asked　warningly。　His　eyes　shone　brightly　with　a　green　light　in　them。　But　Derek　was　past　noticing　the　warning　signs。　In　his　manner　he　was　pletely　off　his　guard。

〃I　have　broken　with　her　utterly；　and　she　knows　it；〃　cried　Derek　angrily。

〃You　have　broken　with　her；　yes；　but　has　she　broken　with　you？〃

Derek　gave　a　sudden　harsh　laugh。

〃She　won't　break　with　two　million　pounds　if　she　can　help　it；〃　he　murmured　brutally；　〃trust　Mirelle　for　that。〃

Poirot　raised　his　eyebrows。

〃You　have　the　outlook　cynical；〃　he　murmured。

〃Have　I？〃　There　was　no　mirth　in　his　sudden　wide　smile。　〃I　have　lived　in　the　world　long　enough；　M。　Poirot；　to　know　that　all　women　are　pretty　much　alike。〃　His　face　softened　suddenly。　〃All　save　one。〃

He　met　Poirot's　gaze　defiantly。　A　look　of　alertness　crept　into　his　eyes；　then　faded　again。　〃That　one；〃　he　said；　and　jerked　his　head　in　the　direction　of　Cap　Martin。

〃Ah！〃　said　Poirot。

This　quiescence　was　well　calculated　to　provoke　the　impetuous　temperament　of　the　other。

〃I　know　what　you　are　going　to　say；〃　said　Derek　rapidly；　〃the　kind　of　life　I　have　led；　the　fact　that　I　am　not　worthy　of　her。　You　will　say　that　I　have　no　right　to　think　even　of　such　a　thing。　You　will　say　that　it　is　not　a　case　of　giving　a　dog　a　bad　name　…　I　know　that　it　is　not　decent　to　be　speaking　like　this　with　my　wife　dead　only　a　few　days；　and　murdered　at　that。〃

He　paused　for　breath；　and　Poirot　took　advantage　of　the　pause　to　remark