On 19 April 1387 he was sent as proctor to secure the papal confirmation for the election of a new abbot.
He gives a detailed negative account of the Papal Curia, with a table of charges incurred by the monastery during the vacancy.
While in Italy Thorne recovered for his monastery the possession of the rectory of Littleborne, Kent, the patronage of which had passed to the monastery of St. Mary de Monte Mirteto of the order of Flora in the diocese of Velletri, where only two monks resided.
On his arrival he hurried to meet the king Richard II at Langley on 5 April.
The work was printed by Roger Twysden in his Decem Scriptores, 1652.