mpr("There are no spellbooks in sight to burn!");

         mpr("You cannot see a spellbook to ignite!");

    {
        const int old_hysteresis = you.piety_hysteresis;
        you.piety_hysteresis = (unsigned char)std::min<int>(
            PIETY_HYSTERESIS_LIMIT, you.piety_hysteresis + pgn);
        const int pgn_borrowed = (you.piety_hysteresis - old_hysteresis);
        pgn -= pgn_borrowed;

    const int old_hysteresis = you.piety_hysteresis;
    you.piety_hysteresis = (unsigned char)std::min<int>(
        PIETY_HYSTERESIS_LIMIT, you.piety_hysteresis + pgn);
    const int pgn_borrowed = (you.piety_hysteresis - old_hysteresis);
    pgn -= pgn_borrowed;

        mprf(MSGCH_DIAGNOSTICS, "Piety decreasing by %d (and %d added to hysteresis)", pgn, pgn_borrowed);

    mprf(MSGCH_DIAGNOSTICS,
         "Piety decreasing by %d (and %d added to hysteresis)",
         pgn, pgn_borrowed);

    }

                                   make_stringf("You can no longer %s.", pmsg).c_str());

                                   make_stringf("You can no longer %s.",
                                                pmsg).c_str());