All the 20 linking verbs are: am, appear, are, being, been, become, be, seem, stay, sound, smell, was, were, taste, turn, is, remain, grow, look, feel. Became is the past tense for become.
Because when brian had woken up and was thirsty it reminded him of a time him and terry we're lost in the woods which brought up the thought of a nostalgia memory
Dante encounters unbaptized infants and classic poets such as Homer, Horace, Ovid, and Lucan in Limbo, which is basically the first circle of Hell in Dante's Divine Comedy.