The danger of Joubert's situation was not fully realised by the British staff. The strength of the enemy's invading columns had been magnified by rumour to 7,000, and the number of their guns doubled. Moreover, the units at Mooi River, and in a lesser degree those at Estcourt, had for the most part only just arrived from a long sea voyage, and as yet lacked the organisation, transport, and physical fitness necessary for rapid movements in the field. At Mooi River, General Barton was without Intelligence staff, guides, or even a map. Under these circumstances, the instructions issued by General Clery from Maritzburg to his subordinate commanders were based on a policy of cautious defensive, although he hoped that in a few days an opportunity for striking at the enemy might arise. Thus, the six days, from the 17th to the 22nd, were marked on the British side by advances to, and withdrawals from, posts between Estcourt and Mooi River, which showed a strong desire to avoid all risks. A detachment of the West Yorkshire, with some mounted men, was despatched from Estcourt on the 17th to occupy Willow Grange, and on the following day a similar mixed garrison was sent up to the Highlands from Mooi River; but on the 20th, under instructions from Maritzburg, both these garrisons were withdrawn. The position of David Joubert's laager to the east of Willow Grange was ascertained by the mounted troops of both Barton's and Hildyard's forces, and on the night of the 20th the latter despatched to Willow Grange eight companies of infantry and 430 mounted men under the command of Colonel Hinde, 1st battalion Border regiment, intending an attack. But the enemy was judged by General Hildyard to be too strongly posted, and the party was withdrawn to Estcourt on the following day. [Sidenote: Hildyard sends force against Brynbella, Nov. 22nd, under Col. W. Kitchener. Action of Willow Grange.] [Sidenote: Kitchener seizes Brynbella.]