The united forces now marched to the shores of the lake, and began to reconnoitre the islands on which the Shouaas, with their cattle and cavalry, were stationed; but the experienced eye of Barca Gana soon discerned, that the channel, though shallow, was full of holes, and had a muddy deceitful appearance.  He proposed therefore to delay the attack, till a resolute band of Kanemboo spearmen should arrive and lead the way.  The lowing, however, of the numerous herds, and the bleating of the flocks on the green islands, which lay before them, excited in the troops a degree of hunger, as well as of military ardour, that was quite irrepressible.  They called out, “What! be so near them, and not eat them?—­No, no, let us on; this night, these flocks and women shall be ours.”  Barca Gana suffered himself to be hurried away, and plunged in amongst the foremost.  Soon, however, the troops began to sink into the holes, or stick in the mud; their guns and powder were wetted, and became useless; while the enemy, who knew every step, and could ride through the water as quickly as on land, at once charged the invaders in front, and sent round a detachment to take them in the rear.  The assault was accordingly soon changed into a disgraceful flight, in which those who had been the loudest in urging to this rash onset set the example.  Barca Gana, who had boasted himself invulnerable, was deeply wounded through his coat of mail and four cotton tobes, and with difficulty rescued by his chiefs from five La Sala horsemen, who had vowed his death.  The army returned to their quarters in disappointment and dismay, and with a severe loss.  During the whole night, the Dugganah women were heard bewailing their husbands, who had fallen, in dirges composed for the occasion, and with plaintive notes, which could not be listened to without the deepest sympathy.  Major Denham was deterred by this disaster from making any further attempt to penetrate to the eastern shores of the Tchad.

The Beddoomahs are another tribe who inhabit extensive and rugged islands, in the interior of the lake, amid its deep waters, which they navigate with nearly a thousand large boats.  They neither cultivate the ground, nor rear flocks and herds, while their manners appeared to Major Denham, the rudest and most savage observed even among Africans—­the Musgows always excepted.  They have adopted as a religious creed, that God having withheld from them corn and cattle, which the nations around enjoy, has given in their stead strength and courage, to be employed in taking these good things from all in whose possession they may be found.  To this belief they act up in the most devout manner, spreading terror and desolation over all the shores of this inland sea, no part of which, even in the immediate vicinity of the great capitals, is for a moment secure from their ravages.  The most powerful and warlike of the Bornou sovereigns, finding among their subjects neither the requisite skill nor experience in navigation, make no attempt to cope with the Biddoomahs on these watery domains, and thus give up the lake to their undisputed sway.