In this Tennyson work, Sir Bedivere is told to "take Excalibur, and fling him far into the middle mere"
This is the final chapter not only in Tennyson's work, but of the golden ... for him
; Take Excalibur, / And fling him far into the middle mere is the king's ... will 
motivate Bedivere to do as he is told: If thou spare to fling Excalibur,... [DOC] [TLE] The Works of Alfred, Lord Tennyson - Google Books [PAR] The Works of Alfred, Lord Tennyson, Volume 3 ... thro told tower Tristram turn'd 
vext Vivien voice vows wherefore wild wood ... now delay not : take Excalibur, 
And fling him far into the middle mere : Watch what thou seest, and lightly bring 
me word.