Question: Which  fictional character and the protagonist of Rudyard Kipling's "The Jungle Book"  did Letting in the Jungle continues its adventure 

Context paragraphs:
The Second Jungle Book: The Second Jungle Book is a sequel to "The Jungle Book" by Rudyard Kipling.  First published in 1895, it features five stories about Mowgli and three unrelated stories, all but one set in India, most of which Kipling wrote while living in Vermont.  All of the stories were previously published in magazines in 1894-5, often under different titles.  The original book is now worth $3.4 million.  The 1994 film "The Jungle Book" used this book as a source.

Baloo: Baloo (Hindi: भालू "Bhālū", "bear") is a main fictional character featured in Rudyard Kipling's "The Jungle Book" from 1894 and "The Second Jungle Book" from 1895.  Baloo, a bear, is the strict teacher of the cubs of the Seeonee wolf pack.  His most challenging pupil is the "man-cub" Mowgli.  Baloo and Bagheera, a panther, save Mowgli from Shere Khan the tiger and endeavor to teach Mowgli the Law of the Jungle in many of "The Jungle Book" stories.

Letting in the Jungle: "Letting In the Jungle" is a short story by Rudyard Kipling which continues Mowgli's adventures from "Mowgli's Brothers" and "Tiger!  Tiger! ".  The story was written at Kipling's parents' home in Tisbury, Wiltshire, and is therefore the only Mowgli story not written in Vermont.

Hathi: Shree.  Hathi is a fictional character created by Rudyard Kipling for the Mowgli stories collected in "The Jungle Book" (1894) and "The Second Jungle Book" (1895).  Hathi is a bull elephant that lives in the jungle.  Kipling named him after "hāthī" (हाथी),(ہاتھی) the Hindi and Urdu word for "elephant".

Jungle Book (2018 film): Jungle Book (formerly known as Jungle Book: Origins) is an upcoming live-action adventure fantasy film directed by Andy Serkis and written by Callie Kloves, based on "The Jungle Book" by Rudyard Kipling.  The film stars Rohan Chand, Matthew Rhys and Freida Pinto, with motion capture performances from Tom Hollander, Christian Bale, and Benedict Cumberbatch.

The Third Jungle Book: The Third Jungle Book by Pamela Jekel (ISBN  , 1992), originally illustrated by Nancy Malick, is a collection of new stories about Mowgli, the feral child character, and his animal companions, created by Rudyard Kipling and featured in Kipling's "The Jungle Book" (1894) and "The Second Jungle Book" (1895).

Naulakha (Rudyard Kipling House): Naulakha, also known as the Rudyard Kipling House, is a historic Shingle Style house on Kipling Road in Dummerston, Vermont, a few miles outside Brattleboro.  The house was designated a National Historic Landmark in 1993 for its association with the author Rudyard Kipling (1865–1936), who had it built in 1893 and made it his home until 1896.  It is in this house that Kipling wrote "Captains Courageous", "The Jungle Book", "The Day's Work", and "The Seven Seas", and did work on "Kim" and "The Just So Stories".  Kipling named the house after the Naulakha Pavilion, situated inside Lahore Fort in Pakistan.  The house is now owned by the Landmark Trust, and is available for rent.

Raksha (The Jungle Book): Raksha (Hindi: रक्षा / "Rakṣā" or Mother Wolf as initially named) is a fictional character featured in Rudyard Kipling's Mowgli stories, collected in "The Jungle Book" and "The Second Jungle Book".  She is a female Indian wolf, member of the Seeonee pack, who while suckling her own cubs decides also to adopt a human "cub" that her mate Father Wolf has found wandering in the jungle, naming him "Mowgli" (which means "frog" in the Speech of the Jungle) because of his hairlessness.

Mowgli: Mowgli is a fictional character and the protagonist of Rudyard Kipling's "The Jungle Book" stories.  He is a naked feral child from the Pench area in Seoni, India, who originally appeared in Kipling's short story "In the Rukh" (collected in "Many Inventions", 1893) and then went on to become the most prominent and memorable character in his collections "The Jungle Book" and "The Second Jungle Book" (1894–1895), which also featured stories about other characters.

The Jungle Book (1994 film): Rudyard Kipling's The Jungle Book is a 1994 live-action American adventure film co-written and directed by Stephen Sommers, produced by Edward S. Feldman and Raju Patel, from a story by Ronald Yanover and Mark Geldman.  It is the second film adaptation by The Walt Disney Company of the Mowgli stories from "The Jungle Book" and "The Second Jungle Book" by Rudyard Kipling.

Supporting paragraphs: Letting in the Jungle Mowgli
Answer: Mowgli