Whilst plenty of attention has been put on the Priceline Group‘s acquisition last week of OpenTable - another deal has also been secured quietly behind the scenes. Tnooz has learned Priceline has bought cloud-based hotel property management system HotelNinjas. Terms of the deal for the startup are unknown. The Spain-based startup is less than two years old and currently working on a second iteration of the product, was founded by CEO Christian Enestrom and chief operating officer Avi Meir. Priceline’s global hotel booking subsidiary giant Booking.com is fronting the acquisition which took place in May, but has yet to be officially unveiled. Get the full story at Tnooz