Although they were slightly outnumbered and had little ammunition, Tenskwatawa's force of 600 to 700 men attacked before dawn on November 7. This attack failed and during the evening, Tenskwatawa consulted with the spirits and decided that sending a party to assassinate Harrison in his tent was the best way to avoid a battle. He assured the warriors that he would cast spells that would make them immune to their bullets and any other harm, as well as confuse Harrison's army so they would not resist. The warriors moved out and began to surround Harrison's army, looking for a way to enter the camp undetected. After a two-hour engagement that became known as the Battle of Tippecanoe, Tenskwatawa's forces retreated from the field and abandoned Prophetstown to avoid capture. On November 8, Harrison's army burned the village to the ground. Nearly one-fifth of Harrison's forces either died or were wounded in battle (according to one source, 188 casualties; 63 of them fatalities). Harrison claimed hundreds of Indian fatalities; however, the actual number fell, according to another source, between thirty and fifty, with an additional seventy to eighty wounded. Tenskwatawa, who did not take part in the action on the field, remained out of range of U.S. bullets.