 Tarzan and the Diamond of Arshere. In the French-African port of Loango, Tarzan and Dono meet the father and sister of the lost archaeologist Brian Gregory, for whom Tarzan is mistaken by Ahtan Tom and his serious woman companion, Magra. Tarzan takes charge of the Gregory expedition, organized to search for young Brian Gregory. Tom, believing Tarzan to have in his possession a map showing the location of the forbidden city of Arshere, manages to bribe Wolf, one of the Gregory guides and hunters, who with the help of Magra, is ordered by Tom to secure the map and deliver it to him. As the scene opens, we find the Gregory party aboard the little river steamer, which will carry them up the Congo to Bunga, where the trek into the jungle is to begin. I'm sorry you're not going with us, I'll miss you. Why, I thought Lieutenant Dono was going. He told me this morning he had arranged his plan so he could go. Yes, uh, buvoyé Tarzan. While Memoirs of Gregory and I were shopping this morning, I cabled Paris for three months' leave and so I am going with you. Well, well, Lieutenant, that's a pleasant surprise. Dono and I will be mighty glad to have... But the lights, the music, the boulevards of Paris, Dono, yesterday you were almost in a hurry to leave Africa. That, mon cher ami, was yesterday. And besides, when I leave for France, it may be a very long time before I see you again. If we allore, if you do not, I'll get, I shall go with you. I am glad, Dono. Miss Gregory is a very charming and lady, isn't she? Oui, ma vieille branque, elle est magnifique. Our equipment and supplies been loaded. All right, Larson, where is Wolf? He's up for it. He just came out. Then as our traps were the last to be loaded, I suppose we'll be leaving soon. No, they are having to cast off now, Monsieur Gregory. Larson, everything is in good order. They would have been aboard sooner, but they had some personal business to take care of. Well, any orders? No, not now. We'll have enough to do when we're on safari. Well, they'll be in my cabin, if you want. Larson and I are working together. Mr. Tarzan. I don't like that man, Dad. Wolf, what's the matter with him? Something about his eyes, I guess. They're too curious. They seem to be probing, searching for something all the time. Did you notice how he emphasized Tarzan's name twice? Up to your old tricks, eh, daughter? Letting your imagination get the better of you? Wolf's all right. He wouldn't be here if he wasn't. How about it, Tarzan? He's all right. Oh, well, maybe I'm wrong. Only he spoke your name as though he doubted its authenticity. I didn't notice. I've never seen him before, and he doesn't know me. Don't get it, Helen. The man's bound to be all right, and Mitchell would not have hired him. When do we get to Bonga, Tarzan? Tomorrow, before noon. If, as Mitchell said, his arrangements have been completed and the bearers are waiting, we'll camp in the jungle tomorrow night. We do not spend the night in Bonga, then, eh? No reason for it. We want to get underway as soon as possible. That's your idea, isn't it, Gregory? Yes, I want to get started on the search for Brian as quickly as I can. You men can sit up and talk as long as you like, but I'm turning in. It's late, and I'm very tired. Good idea, daughter. I think I'll follow your example. Good night, Tarzan. Good night, Gregory. Pardon me, Miss Gregory. Will you step into my cabin one moment, please? Why? Please come in only for a moment. I wish to speak with you about your expedition. Our expedition? Why? Yes, I'll come. What about the expedition? You are going into the Belgian Congo, Argyna, to the region of Tuenbaca? You know of Tuenbaca, the mountain of sunrise? A year ago, I traveled in that region on safari. I was unable to finish my mission there, and I'm returning now. Oh, not alone? Yes. But when I learned from Mr. Mitchell that you are going to the same region, I thought it would be so much better to travel with a large party and in the company of another woman. Oh, of course. It must be rather trying for a woman to undertake such a trip alone. I understand. You'd like to join our party? Oh, I'm so happy that you do understand, and I'm sure I will cause you no inconvenience. I am accustomed to traveling in the jungle. You see, I had intended to organize my own little safari in Bunga, but now... Oh, there's no need for that now. I'll speak to Father and Tarzan. I'm sure it can be a rain. Tarzan? He's taking charge of our expedition, but your name, I'm afraid I didn't catch it. My name is Magra. Magra? Magra, why? Why, Tarzan mentioned that name at dinner last night. Yes? He asked if my brother had ever mentioned any of his letters to us. And did he? No, but... But I doubt that Tarzan seemed to think you knew him. Oh, tell me, Miss Magra, did you know Brian? Yes, I did. He disappeared from the expedition of which we were both members, and he has never been heard of since. That was a year ago, no? Exactly. And that's just why we're going into the Belgian Congo now to look for him. So, you are going to search for Brian Gregory? Yes, and since you knew him, it would be awfully nice having a friend of his with us. I'll go now and speak to Tarzan, and I'll see you in the morning. Good night. Good night, Miss Gregory. Who is it? Who? It's the door. He would have a boom on the board from whom I should take orders. Well, there's only two women here. You must be the one that he meant. And did the other tell you to come to me? He said that you would make yourself known by the word akish. But that is not necessary now. I know that you are the one. So, what about the map? I do not know where it is. But I do. And I've seen it. You have seen it? Yes, just a glimpse. When I went to the hotel this afternoon to get some information from this so-called Tarzan, he was looking at it with the girl under a father. Then Tarzan has it? No, no, the girl. He gave it back to her. Now listen, our job is to get that map. I'll play along with you and help all I can. If you can get it, sing out. Then leave it to Wolf. I think maybe I can handle this job better than you do. You will leave that to my judgment. Remember, you are taking orders from me. All right, all right. Have it your way. Work on the girl. She's got the map. And if you fail, then my way home. Now I'm going. When you want me, give me a sign. When I want your help, I will let you know. Kind of a little spitfire, huh? Well, I like them that way. You're a fine little trick. And I see that we're going to get on well together. After you know old Helman Wolf, huh? Good night. Hello, Dutchie. Where you been all evening? Oh, just looking around, sweet. Getting acquainted with our party. What's the matter with you? You act nervous, walking up and down. Go to bed like me. Ah, I don't like the smell of things, Larsen. This track we are on, too much secrecy. And this fellow Tarzan, he gets the job I am hired for. Why? He been a good, a fine fellow. Ah, yeah, maybe. But I don't make him a good jungle man. No, sweet. I don't like to set up. I want to know more about where we are going. And why? We know where and why. We go to the upper Congo to look for Mr. Gregory's boy. That's good. Yes, sir. Well, suppose, Larsen, that Gregory's boy is on this boat. On this boat? I don't understand. Close that port over your head. Yeah. Now, suppose young Gregory is here. Suppose he has a treasure map. Suppose I know where that map is. Yes, sir. Suppose I'll let. What next do I suppose? Suppose you and I had that map. Just between us. Now, listen, that paper is important in the port. These people are out with a big safari. And they keep their real purpose undercover. Yes, sure, Dutchie. Well, do you think Ben, their real idea is going up into the Congo? Oh, my God, you blockhead. Shall I draw a picture of it? It must be treasure. Thousands of pounds, maybe hundreds of thousands, and hours for the taking. What do you say? Good treasure, Hunter. And they ain't been going to look for the old man's boy. Hmm, that been interesting, Ulf. Yeah, and here's something else interesting. Tazan is old man Gregory's son. On the stern of the river steamer, Tazan and Dono are listening to Helen Gregory's report of her conversation with Margaret. Well, she claims to have been on safari before and accustomed to jungle travel. And so this young lady now wants to join our party. Oh, a logical reason, I believe, Lieutenant. She must realize that she'll be safer with a large party. Perhaps. Did she say definitely where she is going? Well, she mentioned to Anbarca. But what interests me most is the fact that she knew Brian. Oh, she knows your brother? Yes, and under those circumstances she'll take her with us. I think maybe we should. But Tazan, Margaret with us, the woman who... Yes, Dono. I think it's a good idea to have her with us. She'll be company from Miss Helen. Thank you, Tazan. The fact that you also know her, or at least have met her, as you said last night, makes it more like a family party. And she's very beautiful, Lieutenant. So have heard, Namuselle. Well, good night. I'll see you all at breakfast. Good night, Miss Gregory. So, your friend, Margaret, is aboard. Significant, is it not? And yet, you agree to allow an enemy to join our ranks? I'm not so sure she is my enemy. She tried to help me last night. After enticing you into the trap? That's true, but... Oh, I'd rather have her here with us, where I can watch her. And I'm going to bed. Are you coming? I shall finish my cigarette and follow you. Good night, Tazan. The enemy in our camp, I... Lieutenant Darno. Pardon? Oh, Larson, not in bed yet? No, he got something in my mind. So, what is it? It's at home, Wolfe. Ah, you speak French, huh? You're still a... What about Wolfe? Is there somebody in our party that has a map, a valuable map? A map. Where did you get that? Who told you anything about a map? That fellow Wolfe, he knows all about it. No, I'm not sure. Welcome to the point. Well, I used to, a little while ago, he'd come into our cabin and he'd tell me, Tazan. Hey, Tazan. Wolfe says that he'd been old man, Greg Larson, the fellow we've been looking for. And he tells me about the treasure map Tazan has. Quiet. What was that? By him and he, it'd been a piece of wood. And look, there'd been a piece of...