Teenagers are urged to use a knife or razor to make the shape of a whale on their wrist or leg, say Russian reports.
And, is there any point running for the last train?
One Metropolitan line driver, who asked to remain anonymous, shared a series of tips a But the dead end is a false brick wall and the tunnel actually continues for quite a while, according to our inside source.
She was told to cut certain words on her hands and search for a high-rise building from which she could jump.
She did not obey the commands - but there are fears that others did.
There was deep concern last year when there were fears that the sinister masterminds could be behind at least 130 suicides across Russia.
After the arrest of a supposed ringleader, there was a reduction in cases, but now there is major new fear of vulnerable teenagers being swayed by the barbaric death social media accounts.A girl named only as Ekaterina, 15, was critically injured after she fell onto snowy ground from a flat in the city of Krasnoyarsk, also Siberia.Just two days beforehand a 14-year-old girl from Chita, near Mongolia, was reported to have thrown herself under a commuter train.Last year an alleged ringleader named as 21-year-old Philip Budeikin was detained, and he has been charged with organising eight groups between 20 which 'promote suicide'.Some 15 teenagers committed suicide, and another five were rescued at the last moment, according to the case against him.Now police officers in Britain are posting online warnings to alert parents about the challenge.