Lieutenant Helm, who was among the wounded at the time of the surrender, had the good fortune to fall into the hands of some friendly Indians, and was taken to Peoria. He was liberated through the intervention of Thomas Forsyth, the half-brother of Mr. Kinzie, who was the Indian agent at that place. Forsyth had great influence with the Potawatamis. "He had been raised with this nation," says Reynolds, "spoke their language well, and was well acquainted with their character." He advanced the amount demanded by the Indians for Helm's ransom, and had him sent to St. Louis in safety. In this important and dangerous service Forsyth risked his life every moment he was engaged in it, for the Indians at that time were in a highly inflamed condition. Eventually Lieutenant Helm rejoined his wife at Detroit. [Illustration: FRANQUELIN'S MAP OF 1684 _This section of Franquelin's large map finished in 1684 shows the Illinois country and the Illinois river throughout its entire length, with the location of Fort St. Louis, the colony established by La Salle in 1682. This fort was built on that bold eminence on the southern bank of the Illinois river, nearly opposite the present town of Utica, known in later years as Starved Rock._ _The original map made by Franquelin was six feet in length by four and a half in width. Parkman said of it that it was "the most remarkable of all the early maps of the interior of North America." Franquelin was a young engineer in the service of the French King residing in Quebec. The information necessary for the drawing of the map was undoubtedly supplied the young engineer by La Salle himself, who had just returned from the Illinois country._ _It will be observed that the name Chekagou is applied to the river, which is shown as if it were an affluent of the Illinois. The proper location of Chicago on the lake is represented by a strange word Cheagoumeinan, which appears nowhere else on other maps or in the early records._ _The word Chcagou was known even before the site of Chicago was discovered by Joliet and Marquette in 1673. In a report quoted by Charlevoix, written in 1671, certain localities are mentioned, among others "Chicagou at the lower end of Lake Michigan." This is the first mention of the name in history. (See Shea's "Charlevoix," Vol. III, Page 166.)_] [Illustration: MAP OF CHICAGO IN 1812. _On this map is shown the location of Fort Dearborn and the Agency house in the year 1812, the locations of the houses used as dwellings comprising the house of Charles Lee, opposite the mouth of the river, the Kinzie house, the Ouilmette house and the Burns house on the north side of the river; the Indian encampment along the creek which flowed into the river from the south (about where State street now runs), and Lee's Place, or Hardscrabble, on the South Branch._