If there is a novation, the original promisor's liability to the original promisee is relieved, even if the new promisor fails to perform.

Novation

Novation is the legal act of replacing an existing obligation with a new one, substituting a new party or obligation into an original contract.

Original Promisor

The individual or entity who initially makes a promise in a contractual agreement, especially in contexts involving subsequent assignments or transfers of obligations.

Original Promisee

The individual or entity to whom a promise or commitment is initially made in a contractual agreement.