public NewSpellbookContent( Item item, int graphic, int offset, ulong content )
: base(0xBF)
{
EnsureCapacity( 23 );
m_Stream.Write( (short) 0x1B );
m_Stream.Write( (short) 0x01 );
m_Stream.Write( (int) item.Serial );
m_Stream.Write( (short) graphic );
m_Stream.Write( (short) offset );
for ( int i = 0; i < 8; ++i )
m_Stream.Write( (byte)(content >> (i * 8)) );
}