The story of Sir Isumbras, a knight from the high Middle Ages, includes talking birds, epic battles, unicorns, and a quest for redemption where the redemption includes the knight's participation in the crusades...
The creature is the sealah (pronounced SHE-la), a genie that just wants to go out dancing and get dinner...and by that it means it wants you to dance for it before turning you into its dinner.
The Myths and Legends store: https://www.mythpodcast.com/store
"Four and Fourteen" by Blue Dot Sessions
"In the Box" by Blue Dot Sessions
"San Diego Sunday" by Blue Dot Sessions
"Stack Me Up" by Blue Dot Sessions
"Vela Vela" by Blue Dot Sessions
Check out Best Fiends, the 5-star rated mobile puzzle game, on the Apple App Store or Google Play!
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Select Scholarly Works
Sir Isumbras and the Legend of St. Eustace: https://www.brepolsonline.net/doi/abs/10.1484/J.MS.2.305998
Between Romance and Legend: "Secular Hagiography" in Middle English Literature: https://glasgow.rl.talis.com/items/F90AE930-28C7-F45F-C0B5-CD2F84017EEF.html
Magic and the Supernatural in Medieval English Romance: https://books.google.com/books?id=mPqfNFQcVksC&pg=PA218&dq=sir+isumbras&hl=en&newbks=1&newbks_redir=0&sa=X&ved=2ahUKEwjasPOAtu7nAhVBSN8KHaSBCp8Q6AEwBHoECAIQAg#v=onepage&q=sir%20isumbras&f=false
The Sinful Knights (no preview available, sadly): https://books.google.com/books?newbks=1&newbks_redir=0&id=QCxaAAAAMAAJ&dq=Andrea+Hopkins%2C+The+Sinful+Knights%3A+A+Study+of+Middle+English+Penitential+Romance&focus=searchwithinvolume&q=sir+isumbras
The Loss of the Holy Land and Sir Isumbras: https://www.jstor.org/stable/27866771?seq=1