How do Innes and Perry attempt to escape the Mahars' city, and what obstacles do they face?

Innes, Perry, and Ghak attempt to escape the Mahars' city of Phutra by disguising themselves in the skins of dead Mahars, which Innes obtained after killing four of the creatures in a hidden chamber[1][1]. They also arm themselves with swords, bows, arrows, and stolen shields[1].

They face several obstacles, including Innes's prior sentencing to the experimental pits, which he escapes by picking his chains[1][1]. During their disguised exit, Innes's wounded arm bleeds through the Mahar skin, nearly exposing them to a Sagoth guard[1]. Outside the city, the heat makes their disguises unbearable[1]. They are relentlessly pursued by Sagoths, and Perry's exhaustion slows them down[1]. Hooja the Sly One betrays them, failing to warn Ghak's tribe[1]. Innes then faces the Sagoths alone to allow Ghak and Perry to escape[1].
Innes, Perry, and Ghak attempt to escape the Mahars' city of Phutra by disguising themselves in the skins of dead Mahars, which Innes obtained after killing four of the creatures in a hidden chamber[1][1]. They also arm themselves with swords, bows, arrows, and stolen shields[1].

They face several obstacles, including Innes's prior sentencing to the experimental pits, which he escapes by picking his chains[1][1]. During their disguised exit, Innes's wounded arm bleeds through the Mahar skin, nearly exposing them to a Sagoth guard[1]. Outside the city, the heat makes their disguises unbearable[1]. They are relentlessly pursued by Sagoths, and Perry's exhaustion slows them down[1]. Hooja the Sly One betrays them, failing to warn Ghak's tribe[1]. Innes then faces the Sagoths alone to allow Ghak and Perry to escape[1].

Space: At The Earth's Core by Edgar Rice Burroughs

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