"They were there about three-quarters of an hour," continued Gandam. "Of course, I ate my dinner while they ate theirs, and I took good care not to let them see that I was watching them. As soon as I saw signs of a move on their part--when she began putting on her gloves--I paid my waiter and slipped out upstairs to the front entrance. I got a taxi-cab driver to pull up by the kerb and wait for me, and told him who I was and what I was after, and that if those two got into a cab he was to follow wherever they went--cautiously. Gave him a description of the man, you know. Then I hung round till they came out. They parted at once--she went off up Regent Street----" "I wish you'd had another man with you!" exclaimed Starmidge. "I'd give a lot to get hold of that woman. She's probably the housekeeper who disappeared from the bank, you know." "So I guessed, Mr. Starmidge, but what could I do?" said Gandam. "I couldn't follow both, and it was the man you'd put me on to. I decided, of course, for him. Well--he tried to get my cab; when he found it was engaged, he walked on a bit to the corner of Shaftesbury Avenue and got one there. And, of course, we followed. A longish follow, too!--right away up to the back of Regent's Park. You know those detached houses--foot of Primrose Hill? It's one of those--he was a cute chap, my driver, and he contrived to slow down and keep well behind, and yet to see where Chestermarke got out. The name of the house is Oakfield Villa--it's on the gateposts. Of course, I made sure. I sent my man off--and then I hung round some time, passing and re-passing once or twice. And I saw Chestermarke in a front room--the blinds were not drawn--and he was in a smoking-cap and jacket, so I reckoned he was safe for the night. But I can watch the house all night if you think it's necessary, you know, Mr. Starmidge." "No!" answered Starmidge. "Not at all. But I'll tell you what--you be about there first thing tomorrow morning. Can you hang about without attracting attention?" "Easily!" replied Gandam. "Easiest thing in the world. Do you know where a little lodge stands, as you go into Primrose Hill, the St. John's Wood side? Well, his house is close by that. On the other side of the road there's a little path leading over a bridge into the Park--close by the corner of the Zoo--I can watch from that path. You can rely on me, Mr. Starmidge. I'll not lose sight of him this time." Starmidge saw that the man was deeply anxious to atone for his mistake of the previous night, and he nodded assent.