who is appealed of life and members, until it is established whether he can or cannot  defend himself of felony, for he is no more bound to answer to the warranty, while the  accusation is pending, than to the principal plea, because after condemnation everything  done with him after the felony committed must be invalidated and revoked,1  and even his offspring begotten after the felony disinherited.2 The warranty is therefore  suspended until it is clear who ought to succeed him because of the felony,3
Of him who ought to stand in the place of the heir.
 [and so if the warrantor dies without an heir pending the plea of warranty, until it is  clear to whom his land ought to revert as his escheat,]4 since that person ought to  stand in the place of the heir with respect to gifts made before the felony.5 If the warrantor  is hanged or outlawed let the plea then be begun again, in the same state in  which it was when the tenant first vouched the warrantor, when it has been established  whose escheat that inheritance ought to be, as [in the roll] of the eyre of William  of Ralegh in the county of Warwick, [the case] of a certain William son of Robert.6
We must see whether the warrantor who died held in fee or for life.
 We must also see whether the warrantor who died held in fee or only for life, as in  dower or in some other way, as a free tenement which after the warrantor's death is  to revert to the owner of the property. If in fee, let what was said above be done; if for  life, and the owner has impleaded [the tenant], neither the writ nor the principal plea  then falls, only the plea of warranty, which cannot begin again in the persons of the  [deceased's] heirs, and let the principal plea proceed as though the tenant had not at  the outset vouched a warrantor.
One may enter into a warranty of his own will, though not vouched, to protect his own right.
 Though not vouched to warranty, one may enter into a warranty for the protection  of his own right, as where one [who] holds land for life, as a woman in the name of  dower, or in some other way, or for a term, which after the life estate or the term, was  to revert to the owner, fraudulently and to the disherison of the owner allows himself  to be impleaded by another, and though he could vouch the owner to warranty in his  defence fails to do so; the owner, when he sees danger threatening him therefrom, may  well enter into the warranty in order to defend his own right, on his own initiative and  though not vouched, [since it is better and more useful to take action in time than to  seek a remedy after one's cause has been lost,7 and so overcome men's wickedness,]