Next O grants to C, who has notice that the unrecorded deeds to A and B purport to grant a portion of the land embraced in the deed to C.
lack the status of bona fide purchasers--at least it is not in the case of a grantee who is aware that A has an unrecorded deed that would hook A up to the chain of title.
0 then purports to convey the full fee simple to B, who has notice of the unrecorded deed to A.
Suppose the conveyance to A was not a mortgage but an unrecorded deed granting a life estate to A.