From the bodily and mental energy of her girlhood, the close of Edward's reign drew Elizabeth at nineteen to face the sterner problems of religion and politics. In the daring attempt of Northumberland to place Jane Grey on the throne Elizabeth's rights were equally set aside with those of Mary; and the first public act of the girl was to call the gentry to her standard and to join her sister with five hundred followers in her train. But the momentary union was soon dissolved. The daughter of Catharine could look with little but hate on the daughter of Anne Boleyn. Elizabeth's tendency to the "new religion" jarred with the Queen's bigotry; and the warnings of the imperial ambassador were hardly needful to spur Mary to watch jealously a possible pretender to her throne. The girl bent to the Queen's will in hearing mass, but her manner showed that the compromise was merely a matter of obedience, and fed the hopes of the Protestant zealots who saw in the Spanish marriage a chance of driving Mary from the throne. The resolve which the Queen showed to cancel her sister's right of succession only quickened the project for setting Elizabeth in her place; and it was to make Elizabeth their sovereign that Suffolk rose in Leicestershire and Wyatt and his Kentishmen marched against London Bridge. The failure of the rising seemed to ensure her doom. The Emperor pressed for her death as a security for Philip on his arrival; and the detection of a correspondence with the French king served as a pretext for her committal to the Tower. The fierce Tudor temper broke through Elizabeth's self-control as she landed at Traitor's Gate. "Are all these harnessed men there for me?" she cried as she saw the guard; "it needed not for me, being but a weak woman!" and passionately calling on the soldiers to "bear witness that I come as no traitor!" she flung herself down on a stone in the rain and refused to enter her prison. "Better sitting here than in a worse place," she cried; "I know not whither you will bring me." But Elizabeth's danger was less than it seemed. Wyatt denied to the last her complicity in the revolt, and in spite of Gardiner's will to "go roundly to work" with her the Lords of the Council forced Mary to set her free. The Queen's terrors however revived with her hopes of a child in the summer of 1555. To Mary her sister seemed the one danger which threatened the succession of her coming babe and the vast issues which hung on it, and Elizabeth was summoned to her sister's side and kept a close prisoner at Hampton Court. Philip joined in this precaution, for "holding her in his power he could depart safely and without peril" in the event of the Queen's death in childbirth; and other plans were perhaps already stirring his breast. Should Mary die, a fresh match might renew his hold on England; "he might hope," writes the Venetian ambassador, "with the help of many of the nobility, won over by his presents and favours, to marry her (Elizabeth) again, and thus succeed anew to the crown."