In each question, the first and the last sentences of the passage are numbered S1 and S6 respectively. The rest of the passage is split into four parts. These four sentences are jumbled. Read the sentences and identify their correct and logical order.

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S1: Suddenly it began to climb swiftly, and I knew it was speeding eastward again till it became a speck in the blue morning.
P: I didn't know what force they could command, but I was certain it would be sufficient.
Q: My enemies had located me, and the next thing would be a cordon round me.
R: That made me do some savage thinking.
S: The aeroplane had seen my bicycle, and would conclude that I would try to escape by the road.
S6: In that case there might be a chance on the moors to the right or left.
The Proper sequence should be: