Upper panel: heat capacity per one baryon in units of k_B as a function of density in the partially accreted inner crust at T = 10⁸ K. Partial contributions from the nuclei (dotted line), electrons (dot-dashed lines), dripped neutrons (short-dashed line), and dripped protons (long-dashed line), as well as their sum (solid line) are shown. Lower panel: critical temperatures of superfluidity of neutrons (short-dashed lines) and protons (long-dashed lines), and the ion plasma temperature (dotted line).