Message in a bottle

My brother stay in prison, he needs to try to escape. I'm prepared the map about the prison, after that I put the map in a bottle, but in the prison had much security . I think to send the bottle to the ocean, the climate in March is beautiful .

I sent the bottle in this month, it survived with the help of dolphin and other fish. when the bottle stay near the prison my brother swim in the ocean and had the bottle.
He escaped the prison for my help.