// minorVersion 2 starts here
    marshallByte(th, you.piety_hysteresis);

    if (minorVersion >= 2)
        you.piety_hysteresis = unmarshallByte(th);

#define PIETY_HYSTERESIS_LIMIT 1

    mprf(MSGCH_DIAGNOSTICS, "piety: %d", you.piety );

    mprf(MSGCH_DIAGNOSTICS, "piety: %d (-%d)", you.piety, you.piety_hysteresis );

#if DEBUG_PIETY
    mprf(MSGCH_DIAGNOSTICS, "Piety increasing by %d", pgn);
#endif

    // Apply hysteresis
    {
        // piety_hysteresis is the amount of _loss_ stored up, so this
        // may look backwards.
        const int old_hysteresis = you.piety_hysteresis;
        you.piety_hysteresis = (unsigned char)std::max<int>(
            0, you.piety_hysteresis - pgn);
        const int pgn_borrowed = (old_hysteresis - you.piety_hysteresis);
        pgn -= pgn_borrowed;
#if DEBUG_PIETY
mprf(MSGCH_DIAGNOSTICS, "Piety increasing by %d (and %d taken from hysteresis)", pgn, pgn_borrowed);
#endif
    }

            && mitm[i].sub_type != BOOK_MANUAL
	    && mitm[i].sub_type != BOOK_DESTRUCTION)

           && mitm[i].sub_type != BOOK_MANUAL
           && mitm[i].sub_type != BOOK_DESTRUCTION)

		     || mitm[i].sub_type == BOOK_DESTRUCTION)

                     || mitm[i].sub_type == BOOK_DESTRUCTION)

    // Apply hysteresis
    {
        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", pgn);

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

    }

    you.piety_hysteresis = 0;

        you.piety_hysteresis = 0;

    piety_hysteresis = 0;

#define YOU_MINOR_VERSION   1

// 1: starting version
// 2: append piety_hysteresis to TAG_YOU
#define YOU_MINOR_VERSION   2

  unsigned char piety_hysteresis;       // amount of stored-up docking