 Tarzan and the Diamond of Arshere. Pan has organized and taken charge of the James Gregory expedition for the purpose of tracing, if possible, Gregory's son, Brian, the lost archaeologist. Atan Tom, a suave, highly-cultured oriental, believes Tarzan to be the missing scientist. Wolfe, a corrupt guide and magra and Eurasian girl, both tools of Tom, have attached themselves to the Gregory party in order to gain possession of a map showing the location of the forbidden city of Arshere, which Tom believes Tarzan has. On a Congo riverboat, the night before the party is due to arrive at Bunga, the starting point of the safari into the jungle, a mysterious message falls at the feet of Darno. It is the following morning. The boat has docked at Bunga. Larson, the sweet hunter, is actively in charge of the unloading of the supplies and equipment. Assure Tarzan is directing the natives. On the fringe of this scene of mad excitement, Helen Gregory stands with her father and Lieutenant Darno. Look, Lieutenant, it's just like a three-ring circus. Tarzan certainly understands how to handle natives. May we? The jungle and the natives are like an open book to Tarzan. But if you, Monsieur Gregory, had not made previous arrangements through Monsieur Michel, we might have been tied up here for weeks. Wolfe, the hunter and the magra stand together behind a shed at the end of the dock. Who will ruin everything with your idea of Oswald? We can only get a map through diplomacy. Diplomacy, ah, bah. Just leave it to me, magra. There's only one way. We'll talk in sports. The landing of supplies is finished. Tarzan has assigned the last of the bills and boxes to the waiting bearers, and the head of the safari is just leaving the little river town of Bunga to plunge into the jungle. Well Tarzan, we've been making a good beginning, and we are off into the blues. We camp early tonight. These people aren't used to jungle travel. A good idea. And I know you're the place for the first camp. No, all right. Go ahead then, and from now on you'll take charge of camp bearers and leaders. Yeah, sure. You have everything right at the end that you've fixed. If Nelson is to take the lead, Tarzan, it might be a good idea for me to bring up the rear. To keep an eye out for lost equipment will need even stragglers, eh? Yes, Wolfe, and you might as well keep that position. Now that we're underway, let's catch up with the others. Well, Pasiwit Bunga, I have a little surprise for you. What is it? On the boat last night, when you and the others had gone to bed, Tarzan came to me with a story about Wolfe. He is suspicious of the German. Oh, so? Wolfe told Tarzan all about the map of Acher. Hmm, the map again, huh? And while Tarzan was talking, someone threw a note at my feet. Threw a note at your feet? Yes, tied around a block of wood. What did it say? I have it here in my pocket. I shall show it to you. God, are you sure you put it in your pocket? Positive, in this one. Well, what did it say? Just two words. Watch. What? Who threw the note? I have been thinking about it. There is only one person who might wish to warn us in that particular manner, and you know who it's as well as I. Magra. And it most certainly corroborates Tarzan's story. But why would Magra send the warning that day when she could have told either of us in the morning? I do not know unless she is afraid of Wolfe. In that case, Tarno, we'll do as the note says. Watch Wolfe. Now let's catch the others. But you are nervous, Monami. Is it because of what I have just told you? Oh no, it's these clothes. They're tight and uncomfortable. I can't move freely in them. Put it. But civilization demands that you keep them on, at least until the others have become accustomed to your jungle habits. Civilization. That's why I'm in the jungle again, to get away from your civilization. Which breeds such men as Com Wolfe and Laltas. But look, Mamoiselle Ellen seems to be awaiting us beside the trail there. Why are you lagging behind the others, Mamoiselle? I wanted to speak to you and Tarzan. What is it, Miss Gregory? It's about Dad. One of the chief reasons for my being here is to look after him. This is all bound to be new to him, you know, and perhaps difficult. I understand. And for that reason, we are traveling only a short distance today. In fact, we shall soon arrive at our first camp, Mamoiselle, which Larsson is already preparing. A riverboat which is just as low angle, Tom and Laltas are seated together in its stern, discussing their plans for following Tarzan and the Gregory expedition. Is it not possible that we will arrive in Bunga before Brian Gregory's expedition has entered the jungle at dawn? That is very unlikely, Laltas. Gregory eager to get underway will permit no delays. Certainly, his object is to reach what he believes to be Tuanbaka. The mountain wherein our share is said to be hidden as quickly and secretly as possible. And Magra? If she fails to attack you through their party? Magra will not fear me. She's clever. You have never given her due credit, my friend. Yet if she fails? In that case, she will await us at Bunga and we shall follow the Gregory parties we have planned the day or two behind them. When do you propose to overtake Brian Gregory? Not until he is close to his destination. And how are we to learn when that will be? That will be for you to find out. It will be your duty to keep in touch with Magra if she is with them or Wolf if she is not. That will have to be done at it. Brian Gregory will certainly watch his back trail during the day. As I would if I were in his place. However, we have merely to exercise care in our movements and he never know that we are following him. At my suggestion Wolf will bring up the rear of Gregory's party. Which should make it less difficult and dangerous to Wolf or Magra. Dangerous? In what way? Because Brian Gregory is already suspicious of us. He is resourceful and powerful as a water buffalo. I know he nearly killed me the other night at the hotel. And you are not anxious to come to grips with him again eh? Is that it eh? If it happens again I shall kill him. You will not kill Brian Gregory my friend. At least not until the mamba share is in my hand or until he has found the way into to and baka. You understand? I shall protect myself at least. Do you understand? I understand that tantrum. Meanwhile, a few miles above Bunga, the Gregory safari is making its first camp in the African jungle. The soft velvety blackness of night is crept out of the forest and settled densely about the thornboma encircling the encampment of whites and blacks. The chatter of monkeys and the commotion of birds dies away. To give place to the wild calls of savage life awakening to the hunt. The Gregory party has gathered about its campfire after supper for a few last moments talking in for the night. Many listen to that fellow. He bet you he been hungry. I've heard that lions or any of the big cats won't bother a man unless they are hungry. But when they sing out like that I'd rather be up a good high tree. Into melee trunks they've seen tigers go up trees. Oh good heavens, I didn't know lions and tigers could climb trees. I've never heard of that. Is it a fact Tarzan? Well there are no tigers in Africa, but I have seen Numa reach the low branches of a small tree. Numa? What animal is that? Numa, memos and magrise, what the greater, a certain tribe of jungle dwellers call the lion. The natives call him Simba. Hey, him and that farabane close. He sounds like a big one too. Is there any danger Tarzan? No, not if we stay inside the poma. I wouldn't want to be outside that thorn fence and meet Mr. Leo. You are afraid of Numa, of the lion's wolf, huh? With a good rifle in my hands and pretty of distance between us? No. Well I hope they leave us alone. I'm not at all anxious to meet them, even with a good rifle. No, my dear, the closest I have ever been to a lion or ever wish to be is on the outside of a good strong cage with a lion inside. Yes, Mr. Gregory, lions are beautiful, but from a distance only. Yeah, sure. And they won't bother you if you leave them alone. Look, the natives, they are beginning to dance. Looks like they are getting ready for a pow-wow of some kind. They are merely celebrating the fact that they are employed, Mr. Gregory. Uh, they'll keep it up all night, without them spilling mavenbe. Native beer, ma'am, was there. It is quite the usual thing among native barers. And we may be here for two, three days, waiting for them to get over the effects of their yak. Yeah, better put a stop to it, before they go too far. Leave them alone, Wolf. Their celebration won't hold us up. Yeah, but mind God, Tarzan, if they feel themselves up with that stuff, they won't be worth up any kind of more. I'll take care of that. Look at that big black fellow, whirling like a pinway. Yeah, he'll be getting out of his way. The fellow's getting pretty excited. They see that he is. Keep quiet. Then there's no need to break any silk-red or young ladies. Keep quiet. Nothing. That big boy is going to run amok. He has picked up a spear and is shaking, isn't that, Tarzan? Tarzan, that fellow is coming straight for our fire. I'm going to plug that gun. Put that gun away. Put our son. You better get the women out of the way. Put that gun away, Wolf. You too, Tarzan. Keep that gun. Now put it away and stand back. Donald, take care of the women.