To celebrate Mother's Day (I guess?), Two Shot, which contains both The Serial Killer's Wife and No Shelter, is currently $2.99 for the next couple of days. That's over 50% off its regular price of $6.99, and if you take into account the fact both The Serial Killer's Wife and No Shelter retail at $4.99 each, it's a huge savings! Grab it on Kindle or Nook before it's too late.