Republic needs meteorites. Unusual fall. Eyewitness story. Evenkia witnesses.

2. The first expedition.

To "damned place". Terra incognita. The first discovery.

3. Where is the meteorite?

Into centre of catastrophe. Near volcano crater. Expedition on saving.

Suslov's crater. Failures.

5. From bird's eye.

Strange situation. Air survey.

6. The last route.

South swamp. Under Mars sign.

Explosion in air. Visit from the space.

2. Spirit goes out from the bottle.

Play in planetarium. Guest from cosmos. The first attack of fantasist.

3. Scientists arguments.

Fantasists or dreamers? Hypothesis - what is it? Facts and paradigm.

Krinov's monograph. Sikhote-Alin meteorite. Florensky's exploration.

5. Florensky's expedition.

Space and Tunguska. And yet - in air.

The second attack of fantasists. The riddle of Martian satellite. Plekhanov and Tungusov. Passing the button.

2. The second Plekhanov's expedition.

Volunteers. In middle of Twenties century.

3. Joint expedition.

"The roof" is necessary. Turning point. Logic and intuition. Birth of "butterfly". Scorch.

Non-typical facts. The last Academy expedition.

5. Zolotov's expeditions.

Science fiction as an instruction. State program. The first deciphering. Dissertation of heretic.

6. Two discoveries.

Wave from the sky. Storm in magnetosphere. Nuclear or sun storm? Facts versus logic. New stage.

Sceptics and enthusiasts. Siberian commission.

2. College of knowledge limits.

Rout spiral. What to do? To horizon. Again to meteorite.

3. Discussion on Tunguska comet.

Wipple comet. Fesenkov comet. This is not a comet.

Forest-fall maps. The first dissertation. Centre and "fir". But was there or not an explosion? Butterfly model. Spindle. Again splinters?

5. Attack of physicists.

Fifty megatons. Korobeinikov theory. Bronshten theory. Meteorite with quality sign.

6. As a nuclear bomb.

Tunguska explosive. Signs on the sky. Tracks on earth. Radiocarbon. From California to Evenkia. Closing of anomalies.

Magnetic track. Crystals light. Nuclear breaking.

2. Living witnesses.

Acceleration. Mutants.

3. Fire from heaven.

Burn. "Burnists". Fire phantom. Fire.

Pro et contra. Invisible dust. Ytterbium, sodium, hydrogen. Kiever's contribution. Isotopes and fertilisers. Map of ashes.

5. Illumination above Euroasia.

Roerich colours. The riddle of Arago point. Comet tail.

6. Human memory.

Legends and digits. Konenkin' s route. Manoeuvre. Witnesses - into system. Several bodies? Tracks of splinters?

Azimuth is needed. Logic of geophysics. Symposium in Krasnoyarsk. Sun messenger.

The third comet. Corrections of Halley comet. "Pre-Tunguska meteorite". Natural or artificial? Explosion of a spacecraft.