possession of it unless there is something to show that his possession is consistent with a recognition of B's title. (See Ward v. Carttar) Adverse possession is of two kinds, according as it was adverse from the beginning, or has become so subsequently. Thus, if a mere trespasser takes possession of A's property, and retains it against him, his possession is adverse ab initio. But if A grants a lease of land to B, or B obtains possession of the land as A's bailiff, or guardian, or trustee, his possession can only become adverse by some change in his position. Adverse possession not only entitles the adverse possessor, like every other possessor, to be protected in his possession against all who cannot show a better title, but also, if the adverse possessor remains in possession for a certain period of time produces the effect either of barring the right of the true owner, and thus converting the possessor into the owner, or of depriving the true owner of his right of action to recover his property and this although the true owner is ignorant of the adverse possessor being in occupation.