A beneficiary can pursue a single trustee for the whole loss, even one whose only fault was failing to supervise, which makes the rules on redistributing that burden essential. This chapter begins with joint and several liability itself, including the passive trustee's position and the bar on double recovery. It then sets out the two routes between trustees — contribution as the default and indemnity as the exception — before examining the statutory basis for a contribution claim and how the court fixes the amount. It closes with the situations that justify a full indemnity, such as a trustee-beneficiary who instigated the breach for personal gain or a lay trustee who relied in good faith on a solicitor-trustee's advice.