Somehow the story of the night meeting leaked out, with the result that persecution was redoubled, and many of the less wealthy followers were forced to flee to Medinah. They were there well received and cared for, and were afterwards honoured by being designated the "refugees," while those who received them were similarly honoured in being named the "helpers." Thus the brotherhood of believers insisted on by Mohammed began to assume practical form, and men of different tribes were united in one common bond--a brotherhood so powerful that its enemies in Mecca were filled with alarm. They had no longer to deal with a man whose views could be despised. They were menaced by a growing force that threatened to overwhelm them. Steps were taken to overthrow the danger, and elaborate arrangements were made for the assassination of the prophet. He somehow obtained news of the plot, and escaped the would-be murderers, who came while he was supposed to be in bed, by climbing through a window. Accompanied by the faithful Abu Bakr and a few of his more intimate followers, he made his way to one of the mountain caves, where he stayed until the immediate danger had passed. Then the little company commenced the journey to Medinah, a task so fraught with danger and hardship that Mohammed shrank from it, in spite of the Meccan evil, and was compelled to attempt it only by the pressure of his friends. The facts concerning his entry into Medinah are obscure and uncertain, but there is no doubt that his advent was hailed with delight by the "helpers" and "refugees." Hospitality was freely offered, and, owing to the prophet's independent spirit, reluctantly accepted. One of his earliest actions after arrival was to consolidate his forces by strengthening the brotherhood, making the obligations of his followers to one another, and himself, more binding than the ties of blood. IV.--GROWTH AND PROGRESS.