[The Might]

I do also however wonder what the Ring told him at the Cracks of Doom.
We know, as said in the Letters, that probably nobody else in the time of the War of the Ring could have brought the Ring as far as Frodo did, so he does seem to have been the best choice, and as Gandalf hints in UT, The Quest of Erebor, he was also probably chosen for this by Eru, just as Bilbo was meant to find the Ring.
Still, did the Ring have to deceive him in any way in the Sammath Naur, or was the power of the Ring in that place so great that it didn't even need to deceive Frodo?