A full and true account of a horrid and bloody conspiracy of the Papists against the Protestants in the North of England : being a true copy of a letter from Thoms. Rowland at Hexham in Northumberland, shewing the intention of a most barbarous murther was intended to be committed on William Rowland of that place by the Lord Derwinwater's son, Mr. Thoms. Ratcliff, a papist.