How does the Light Fury’s ABILITY work

Exactly how does a light Fury's ability work? In How to Train Your Dragon 3 a subspecies of the Night Fury has the ability to make herself invisible. How long does her power work? Fanart: 0:14 and Thumbnail by SPEARMARK https://www.deviantart.com/spearmark 1:15 by Sindriian https://www.instagram.com/sindriian/ https://m.pikabu.ru/story/toothless_gets_some_5959573 http://hdqwalls.com/light-fury-5k-wallpaper https://twitter.com/DearlyDoodles/status/1004930555950006273 http://gramha.com/media/1825589669473834914 http://gramha.com/media/1824564741755100636 http://gramha.com/media/1825598122698351162 http://gramha.com/media/1824394519980742742 http://picbear.online/tag/fanarthttyd https://www.google.com/search?q=how+to+find+an+image+on+a+webiste&rlz=1C1CHBF_enUS719US719&oq=how+to+find+an+image+on+a+webiste&aqs=chrome..69i57j0.4423j1j8&sourceid=chrome&ie=UTF-8 -~-~~-~~~-~~-~- *CHECK OUT*: "NEW FOOTAGE of Godzilla vs Kong LEAKED from CCXP" https://www.youtube.com/watch?v=RPiFDzocp00 -~-~~-~~~-~~-~-