Time is running out for your character(s) to claim their follower pet butterfly from Diango or his counterpart in Elf City. This is a quote from the http://runescape.wikia.com webpage entitled "Treborn" at http://runescape.wikia.com/wiki/Treborn: "Treborn is a follower pet that can be unlocked between 8 and 22 January 2017."

Free side (of Runescape) players, please note: The table (of specifications) on the right side of the webpage specifies "Members: No".